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Some chargers overpromise. But the Efest SLIM K4 charger brings real value with 147 practical specs & features — including general information, electrical & power, charging performance & ports & connectivity.
A fast snapshot of the Efest SLIM K4, covering its standout specification and what you can expect right out of the box.
Efest SLIM K4
The Efest SLIM K4 is a sleek and modern four-slot battery charger that utilizes a convenient USB Type-C port for flexible power options. It automatically detects your battery type and manages the current to ensure each cell is charged safely and efficiently. With its minimalist LED display and built-in safety features, it provides a hassle-free way to keep multiple batteries ready for your favorite electronics.
Specifications & Facts
147
Specs measured. Drama avoided.
Think you know gadgets? Check out the full scoop on the Efest SLIM K4 charger: specs, votes, pros, cons, and how it measures up to competing chargers.
General Information
15
Efest SLIM K4
Intended Use
What is the intended use of this charger?
21
Efest SLIM K4
0
Votes
Home, Travel
22
Chargers in this range
Home, Office, Travel
Efest SLIM K4
Intended uses for this charger include both home and travel, making it versatile for different environments.
Describes where and how the charger is primarily intended to be used.
When it comes to Intended Use,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Intended Use on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Device Compatibility
What devices are compatible with this charger?
28
Efest SLIM K4
0
Votes
Accessory
38
Chargers in this range
Smartphone, Tablet, Laptop, Accessory
Efest SLIM K4
Compatible primarily with accessories, suggesting this charger is optimized for smaller or peripheral devices.
Indicates the types of devices the charger can power.
When it comes to Device Compatibility,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
10 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Device Compatibility on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Installation Type
How is the charger installed?
23
Efest SLIM K4
0
Votes
Plug-In
25
Chargers in this range
Plug-In
Efest SLIM K4
Installation type is plug-in, meaning the charger connects directly to wall outlets without the need for hardwiring.
Describes how the charger is installed or connected.
When it comes to Installation Type,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
2 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Installation Type on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Release Year
What year was this charger released?
58
Efest SLIM K4
0
Votes
2020
69
Chargers in this range
2024
Efest SLIM K4
This model was released in the year 2020, reflecting its design and feature set from that era.
The year the charger model was first released to market.
When it comes to Release Year,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
11 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Release Year on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Product Name
What is the product name?
63
Efest SLIM K4
0
Votes
Efest SLIM K4
61
Chargers in this range
Anker 715
Official product name used to identify the charger model.
When it comes to Product Name,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
2 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Product Name on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Charger Type
What type of charger is this?
13
Efest SLIM K4
0
Votes
Wall Charger
22
Chargers in this range
Wall Charger
Defines the primary charger category based on form and usage.
When it comes to Charger Type,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
9 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Charger Type on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Power Source
What is the power source?
63
Efest SLIM K4
0
Votes
AC Outlet
57
Chargers in this range
AC Outlet
Defines where the charger draws its power from.
When it comes to Power Source,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
6 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Power Source on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Usage Environment
Where can this charger be used?
33
Efest SLIM K4
0
Votes
Indoor
39
Chargers in this range
Indoor
Specifies the environments where the charger is designed to operate.
When it comes to Usage Environment,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
6 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Usage Environment on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Certifications
What certifications does this charger have?
66
Efest SLIM K4
0
Votes
CE, FCC, RoHS, Qi
64
Chargers in this range
CE, FCC, RoHS
Lists official safety, quality, and compliance certifications held by the charger.
When it comes to Certifications,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
2 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Certifications on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Charging Technology
What charging technology does it use?
33
Efest SLIM K4
0
Votes
Standard Charging
56
Chargers in this range
Fast Charging
Indicates the core technology used to deliver power efficiently.
When it comes to Charging Technology,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
23 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Charging Technology on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Compatibility Notes
Are compatibility notes clearly provided?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Indicates whether additional compatibility limitations or requirements are clearly disclosed.
When it comes to Compatibility Notes,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
19 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Compatibility Notes on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Mounting Style
What is the mounting style?
63
Efest SLIM K4
0
Votes
Desktop
63
Chargers in this range
Desktop
Indicates how the charger is physically positioned during use.
When it comes to Mounting Style,
Efest SLIM K4 ◉ is
same as
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Mounting Style on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Regulatory Region
Which regulatory regions does it support?
93
Efest SLIM K4
0
Votes
Global
79
Chargers in this range
Global
Indicates the regions where the charger meets regulatory standards.
When it comes to Regulatory Region,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
14 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Regulatory Region on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
User Level
What user level is this charger designed for?
3
Efest SLIM K4
0
Votes
Beginner
7
Chargers in this range
Beginner
Describes the technical experience level required to use the charger effectively.
When it comes to User Level,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
4 score
measurement.
Don’t keep it to yourself — be the first to react and review the
User Level on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Product Form Factor
What is the product form factor?
63
Efest SLIM K4
0
Votes
Compact
58
Chargers in this range
Compact
Describes the overall physical form and size profile of the charger.
When it comes to Product Form Factor,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
5 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Product Form Factor on Efest SLIM K4
◉ and help others decide!
Electrical & Power
19
Efest SLIM K4
Minimum Output Power
What is the minimum output power?
5
Watt
0Votes
9.77
Watt (Average)
Efest SLIM K4
Minimum output power is 5 W, sufficient for charging smaller devices.
The lowest stable power output supported by the charger.
When it comes to Minimum Output Power,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
4.8 Watt
measurement.
Don’t keep it to yourself — be the first to react and review the
Minimum Output Power on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Input Voltage
What input voltage does it support?
5
Volt
0Votes
85.12
Volt (Average)
Efest SLIM K4
Input voltage is 5 V, standard for USB charging, ensuring compatibility with globally available power sources.
The voltage range required from the power source to operate safely.
When it comes to Input Voltage,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
80.1 Volt
measurement.
Don’t keep it to yourself — be the first to react and review the
Input Voltage on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Input Current
How much input current does it draw?
2
A
0Votes
1.64
A (Average)
Efest SLIM K4
Input current is 2 A, matching the output current for efficient power transfer.
The amount of current drawn from the power source during operation.
When it comes to Input Current,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
0.4 A
measurement.
Don’t keep it to yourself — be the first to react and review the
Input Current on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Output Current
What is the output current?
2
A
0Votes
2.82
A (Average)
Efest SLIM K4
Output current is 2 A, which supports a steady and moderately fast charging rate for compatible devices.
The maximum current delivered to devices for charging.
When it comes to Output Current,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
0.8 A
measurement.
Don’t keep it to yourself — be the first to react and review the
Output Current on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Input Frequency
What input frequency is supported?
50
Hz
0Votes
45.08
Hz (Average)
Efest SLIM K4
The input frequency is 50 Hz, matching standard AC power frequency in many countries.
The electrical frequency range the charger can accept.
When it comes to Input Frequency,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
4.9 Hz
measurement.
Don’t keep it to yourself — be the first to react and review the
Input Frequency on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Maximum Output Power
What is the maximum output power?
5
Watt
0Votes
31.03
Watt (Average)
The highest total power the charger can deliver to connected devices.
When it comes to Maximum Output Power,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
26.0 Watt
measurement.
Don’t keep it to yourself — be the first to react and review the
Maximum Output Power on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Output Voltage
What is the output voltage?
5
Volt
0Votes
13
Volt (Average)
The voltage supplied to connected devices during charging.
When it comes to Output Voltage,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
8.0 Volt
measurement.
Don’t keep it to yourself — be the first to react and review the
Output Voltage on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Short Circuit Protection
Does it have short circuit protection?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Automatically shuts down power if a short circuit is detected.
When it comes to Short Circuit Protection,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
6 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Short Circuit Protection on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Overcurrent Protection
Is overcurrent protection included?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Prevents damage by limiting excessive current flow.
When it comes to Overcurrent Protection,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
6 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Overcurrent Protection on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Overvoltage Protection
Does it prevent overvoltage?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Protects devices from excessive voltage output.
When it comes to Overvoltage Protection,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
6 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Overvoltage Protection on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Power Efficiency
How efficient is the charger?
43
Efest SLIM K4
0
Votes
Medium
80
Chargers in this range
High
Indicates how effectively input power is converted into usable output power.
When it comes to Power Efficiency,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
37 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Power Efficiency on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Power Factor
What is the power factor?
43
Efest SLIM K4
0
Votes
Medium
58
Chargers in this range
High
Indicates how efficiently electrical power is drawn from the power source.
When it comes to Power Factor,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
15 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Power Factor on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Standby Power Consumption
How much power is used on standby?
0.5
Watt
0Votes
0.16
Watt (Average)
Power consumed when the charger is plugged in but not actively charging.
When it comes to Standby Power Consumption,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
0.3 Watt
measurement.
Don’t keep it to yourself — be the first to react and review the
Standby Power Consumption on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Voltage Regulation
How good is the voltage regulation?
53
Efest SLIM K4
0
Votes
Good
61
Chargers in this range
Good
Indicates how well output voltage remains stable under varying load conditions.
When it comes to Voltage Regulation,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
8 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Voltage Regulation on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Current Regulation
How good is the current regulation?
63
Efest SLIM K4
0
Votes
Good
67
Chargers in this range
Good
Indicates how consistently current is controlled during charging.
When it comes to Current Regulation,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
4 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Current Regulation on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Load Regulation
How good is the load regulation?
26
Efest SLIM K4
0
Votes
Good
37
Chargers in this range
Good
Measures output stability as load increases or decreases.
When it comes to Load Regulation,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
11 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Load Regulation on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Ripple & Noise
How much ripple and noise is present?
93
Efest SLIM K4
0
Votes
Low
80
Chargers in this range
Low
Indicates the level of electrical noise present in the output.
When it comes to Ripple & Noise,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
13 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Ripple & Noise on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Surge Protection Rating
How strong is the surge protection?
0
Efest SLIM K4
0
Votes
Basic
41
Chargers in this range
Enhanced
Indicates the strength of protection against voltage spikes.
When it comes to Surge Protection Rating,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
41 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Surge Protection Rating on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Peak Power Handling
What peak power can it handle?
12
Watt
0Votes
39.55
Watt (Average)
The maximum short-term power the charger can safely handle.
When it comes to Peak Power Handling,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
27.5 Watt
measurement.
Don’t keep it to yourself — be the first to react and review the
Peak Power Handling on Efest SLIM K4
◉ and help others decide!
Charging Performance
14
Efest SLIM K4
Simultaneous Device Charging
How many devices can be charged simultaneously?
43
Efest SLIM K4
0
Votes
4
12
Chargers in this range
2
Efest SLIM K4
It supports charging 4 devices simultaneously, matching its total number of ports for maximum utility.
The maximum number of devices that can be charged at the same time.
When it comes to Simultaneous Device Charging,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
31 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Simultaneous Device Charging on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Power Distribution Method
How is power distributed?
73
Efest SLIM K4
0
Votes
Dynamic
46
Chargers in this range
Dynamic
Efest SLIM K4
Power distribution method is dynamic, optimizing charging currents across ports for efficient usage.
Describes how power is allocated across multiple ports.
When it comes to Power Distribution Method,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
27 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Power Distribution Method on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Full Charge Time Estimate
How long does a full charge take?
0
Efest SLIM K4
0
Votes
6 Hours
35
Chargers in this range
2 hours
Efest SLIM K4
Full charge time is estimated at 6 hours, indicating the typical duration to charge devices fully using this charger.
Estimated time required to fully charge a typical device.
When it comes to Full Charge Time Estimate,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
35 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Full Charge Time Estimate on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Charging Speed
What is the charging speed category?
26
Efest SLIM K4
0
Votes
Standard
56
Chargers in this range
Fast
Classifies overall charging speed based on supported power and protocols.
When it comes to Charging Speed,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
30 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Charging Speed on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Maximum Charging Speed
What is the maximum charging speed?
10
Watt
0Votes
29.49
Watt (Average)
The highest charging power delivered to a single device.
When it comes to Maximum Charging Speed,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
19.5 Watt
measurement.
Don’t keep it to yourself — be the first to react and review the
Maximum Charging Speed on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Intelligent Power Allocation
Does it allocate power intelligently?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Automatically adjusts power delivery based on connected devices.
When it comes to Intelligent Power Allocation,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
15 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Intelligent Power Allocation on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Charging Stability
How stable is the charging performance?
43
Efest SLIM K4
0
Votes
Stable
41
Chargers in this range
Stable
Reflects how consistent charging output remains over time.
When it comes to Charging Stability,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
2 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Charging Stability on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Heat Management Efficiency
How efficient is heat management?
43
Efest SLIM K4
0
Votes
Medium
65
Chargers in this range
High
Measures how effectively heat is managed during charging.
When it comes to Heat Management Efficiency,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
22 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Heat Management Efficiency on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Throttling Behavior
How does the charger throttle performance?
93
Efest SLIM K4
0
Votes
Gradual
79
Chargers in this range
Gradual
Describes how charging speed is reduced when limits are reached.
When it comes to Throttling Behavior,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
14 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Throttling Behavior on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Charging Consistency
Is charging speed consistent?
93
Efest SLIM K4
0
Votes
Consistent
85
Chargers in this range
Consistent
Indicates how evenly charging speed is maintained throughout a session.
When it comes to Charging Consistency,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
8 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Charging Consistency on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Idle Charging Behavior
What happens after charging is complete?
63
Efest SLIM K4
0
Votes
Standby
56
Chargers in this range
Standby
Describes behavior when a device is fully charged but still connected.
When it comes to Idle Charging Behavior,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
7 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Idle Charging Behavior on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Adaptive Charging
Does it support adaptive charging?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Adjusts charging patterns based on device needs and conditions.
When it comes to Adaptive Charging,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
12 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Adaptive Charging on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Device Detection Accuracy
How accurate is device detection?
93
Efest SLIM K4
0
Votes
High
81
Chargers in this range
High
Accuracy in identifying connected devices and their power needs.
When it comes to Device Detection Accuracy,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
12 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Device Detection Accuracy on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Startup Charging Delay
Is there a delay before charging starts?
No
0Votes
Efest SLIM K4
Yes
Chargers in this range
Time taken before charging begins after a device is connected.
When it comes to Startup Charging Delay,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Startup Charging Delay on Efest SLIM K4
◉ and help others decide!
Ports & Connectivity
16
Efest SLIM K4
Total Ports
How many total ports does the charger have?
63
Efest SLIM K4
0
Votes
4
22
Chargers in this range
1
Efest SLIM K4
The charger offers a total of 4 ports, allowing simultaneous charging of multiple devices.
Total number of output ports available for charging devices.
When it comes to Total Ports,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
41 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Total Ports on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Port Placement
Where are the ports located?
73
Efest SLIM K4
0
Votes
Front
65
Chargers in this range
Front
Efest SLIM K4
Ports are placed at the front, providing easy access for connecting devices.
Location of charging ports on the charger body.
When it comes to Port Placement,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
8 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Port Placement on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Connector Type
What connector types are supported?
83
Efest SLIM K4
0
Votes
USB-C
65
Chargers in this range
USB-C
Efest SLIM K4
USB-C is the connector type used, allowing for compatibility with modern devices and fast charging capabilities.
Types of connectors supported by the charger.
When it comes to Connector Type,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
18 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Connector Type on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Cable Length
How long is the charging cable?
3
ft
0Votes
2.66
ft (Average)
Efest SLIM K4
The cable length is 3 ft, equivalent to approximately 0.91 m, offering convenient reach without excess clutter.
Length of the included charging cable.
When it comes to Cable Length,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
0.3 ft
measurement.
Don’t keep it to yourself — be the first to react and review the
Cable Length on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
USB-C Ports
How many USB-C ports does it have?
0
Efest SLIM K4
0
Votes
0
56
Chargers in this range
1
Number of USB-C output ports for modern devices.
When it comes to USB-C Ports,
Efest SLIM K4 ◉ is
same as
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
USB-C Ports on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Wireless Charging
Does it support wireless charging?
No
0Votes
Efest SLIM K4
Yes
Chargers in this range
Indicates whether the charger supports wireless charging.
When it comes to Wireless Charging,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Wireless Charging on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Detachable Cable
Is the cable detachable?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Indicates whether the charging cable can be detached.
When it comes to Detachable Cable,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
30 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Detachable Cable on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Interchangeable Plugs
Does it support interchangeable plugs?
No
0Votes
Efest SLIM K4
Yes
Chargers in this range
Supports interchangeable plug heads for different regions.
When it comes to Interchangeable Plugs,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Interchangeable Plugs on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Pass-Through Charging
Does it support pass-through charging?
No
0Votes
Efest SLIM K4
Yes
Chargers in this range
Allows the charger to power devices while itself being powered.
When it comes to Pass-Through Charging,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Pass-Through Charging on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Port Labeling
Are the ports labeled?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Indicates whether ports are clearly labeled for identification.
When it comes to Port Labeling,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
12 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Port Labeling on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Port Durability
How durable are the ports?
43
Efest SLIM K4
0
Votes
Medium
65
Chargers in this range
High
Expected resistance of ports to wear from repeated use.
When it comes to Port Durability,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
22 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Port Durability on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Connector Durability
How durable are the connectors?
43
Efest SLIM K4
0
Votes
Medium
67
Chargers in this range
High
Durability of the connector interface itself.
When it comes to Connector Durability,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
24 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Connector Durability on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Magnetic Alignment
Does it support magnetic alignment?
No
0Votes
Efest SLIM K4
Yes
Chargers in this range
Supports magnetic alignment for easier device placement.
When it comes to Magnetic Alignment,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Magnetic Alignment on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Daisy-Chain
Can it be daisy-chained?
No
0Votes
Efest SLIM K4
Yes
Chargers in this range
Allows multiple chargers or devices to be linked together.
When it comes to Daisy-Chain,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Daisy-Chain on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Port Power Priority
How is port power priority handled?
93
Efest SLIM K4
0
Votes
Auto
66
Chargers in this range
Auto
Determines how power priority is assigned among ports.
When it comes to Port Power Priority,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
27 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Port Power Priority on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
USB-A Ports
How many USB-A ports are included?
0
Efest SLIM K4
0
Votes
0
19
Chargers in this range
1
Number of traditional USB-A output ports.
When it comes to USB-A Ports,
Efest SLIM K4 ◉ is
same as
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
USB-A Ports on Efest SLIM K4
◉ and help others decide!
Physical Dimensions & Weight
2
Efest SLIM K4
Cable Thickness
How thick is the cable?
0.2
inch
0Votes
0.21
inch (Average)
Efest SLIM K4
Cable thickness measures 0.2 inch, which is approximately 0.51 cm, balancing durability and flexibility.
Thickness of the charging cable, affecting durability and flexibility.
When it comes to Cable Thickness,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
0.0 inch
measurement.
Don’t keep it to yourself — be the first to react and review the
Cable Thickness on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Travel Size Classification
Is this charger travel-sized?
63
Efest SLIM K4
0
Votes
Compact
62
Chargers in this range
Compact
Overall size category based on dimensions and portability.
When it comes to Travel Size Classification,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Travel Size Classification on Efest SLIM K4
◉ and help others decide!
Build Quality & Materials
11
Efest SLIM K4
Housing Material
What is the housing material?
33
Efest SLIM K4
0
Votes
Plastic
39
Chargers in this range
Plastic
Efest SLIM K4
The charger housing is made of plastic, providing a lightweight and cost-effective enclosure.
Primary material used for the outer charger casing.
When it comes to Housing Material,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
6 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Housing Material on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Fire-Retardant Rating
What is the fire-retardant rating?
93
Efest SLIM K4
0
Votes
V-0
84
Chargers in this range
V-0
Efest SLIM K4
Fire-retardant rating V-0 indicates the material self-extinguishes quickly, offering high fire safety.
Fire safety rating of the charger materials.
When it comes to Fire-Retardant Rating,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
9 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Fire-Retardant Rating on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Plug Material
What material is the plug made of?
58
Efest SLIM K4
0
Votes
Plastic, Metal
55
Chargers in this range
Metal
Material used for the plug prongs and structure.
When it comes to Plug Material,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
3 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Plug Material on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Port Reinforcement
Are the ports reinforced?
0
Efest SLIM K4
0
Votes
Standard
28
Chargers in this range
Standard
Indicates whether charging ports are reinforced for durability.
When it comes to Port Reinforcement,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
28 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Port Reinforcement on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Heat-Resistant Materials
Does it use heat-resistant materials?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Uses materials designed to withstand high temperatures safely.
When it comes to Heat-Resistant Materials,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
7 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Heat-Resistant Materials on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Surface Finish
What is the surface finish?
53
Efest SLIM K4
0
Votes
Matte
52
Chargers in this range
Matte
External surface finish affecting grip and aesthetics.
When it comes to Surface Finish,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Surface Finish on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Build Rigidity
How rigid is the charger build?
93
Efest SLIM K4
0
Votes
Solid
81
Chargers in this range
Solid
Overall structural stiffness of the charger body.
When it comes to Build Rigidity,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
12 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Build Rigidity on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Drop Resistance
How drop-resistant is the charger?
3
ft
0Votes
2.98
ft (Average)
Maximum drop height the charger can withstand without damage.
When it comes to Drop Resistance,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
0.0 ft
measurement.
Don’t keep it to yourself — be the first to react and review the
Drop Resistance on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Scratch Resistance
How scratch-resistant is it?
43
Efest SLIM K4
0
Votes
Medium
45
Chargers in this range
Medium
Resistance of the surface to scratches and abrasions.
When it comes to Scratch Resistance,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
2 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Scratch Resistance on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Moisture Resistance
Is it resistant to moisture?
0
Efest SLIM K4
0
Votes
None
22
Chargers in this range
None
Ability to withstand moisture exposure.
When it comes to Moisture Resistance,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
22 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Moisture Resistance on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Material Sustainability Level
How sustainable are the materials?
0
Efest SLIM K4
0
Votes
Low
24
Chargers in this range
Medium
Use of sustainable or environmentally friendly materials.
When it comes to Material Sustainability Level,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
24 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Material Sustainability Level on Efest SLIM K4
◉ and help others decide!
Safety & Protection Features
15
Efest SLIM K4
Safety Redundancy Level
What is the safety redundancy level?
93
Efest SLIM K4
0
Votes
Multi-Layer
79
Chargers in this range
Multi-Layer
Efest SLIM K4
Safety redundancy is multi-layered, providing enhanced protection against electrical faults and failures.
Indicates the number of safety systems working together.
When it comes to Safety Redundancy Level,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
14 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Safety Redundancy Level on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Child Safety Shutter
Is there a child safety shutter?
No
0Votes
Efest SLIM K4
Yes
Chargers in this range
Prevents accidental insertion of objects into live ports.
When it comes to Child Safety Shutter,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Child Safety Shutter on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Safety Certification Level
What is the safety certification level?
43
Efest SLIM K4
0
Votes
Basic
61
Chargers in this range
Enhanced
Overall strength of safety certifications achieved.
When it comes to Safety Certification Level,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
18 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Safety Certification Level on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Overheat Protection
Does it have overheat protection?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Automatically reduces or shuts off power when excessive heat is detected.
When it comes to Overheat Protection,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
6 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Overheat Protection on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Temperature Monitoring
Is temperature actively monitored?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Continuously monitors internal temperature during operation.
When it comes to Temperature Monitoring,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
10 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Temperature Monitoring on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Fire Protection
Does it include fire protection?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Built-in measures to reduce fire risk during electrical faults.
When it comes to Fire Protection,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
7 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Fire Protection on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Electrical Isolation
Is electrical isolation implemented?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Separates high-voltage and low-voltage components for safety.
When it comes to Electrical Isolation,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
6 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Electrical Isolation on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Grounding
Does it support grounding?
No
0Votes
Efest SLIM K4
Yes
Chargers in this range
Supports grounding to reduce shock and electrical interference.
When it comes to Grounding,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Grounding on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Anti-Spark Protection
Does it have anti-spark protection?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Reduces sparking when plugging or unplugging devices.
When it comes to Anti-Spark Protection,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
11 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Anti-Spark Protection on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
EMI Protection
Is EMI protection included?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Protects against electromagnetic interference affecting nearby electronics.
When it comes to EMI Protection,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
6 score
measurement.
Don’t keep it to yourself — be the first to react and review the
EMI Protection on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
ESD Protection
Is ESD protection supported?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Shields the charger from electrostatic discharge damage.
When it comes to ESD Protection,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
7 score
measurement.
Don’t keep it to yourself — be the first to react and review the
ESD Protection on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Auto Shut-Off
Does it shut off automatically?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Automatically cuts power when unsafe conditions are detected.
When it comes to Auto Shut-Off,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
7 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Auto Shut-Off on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Fault Detection
Can it detect electrical faults?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Detects abnormal electrical conditions during operation.
When it comes to Fault Detection,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
7 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Fault Detection on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Protection Response Time
How fast does protection activate?
63
Efest SLIM K4
0
Votes
Instant
45
Chargers in this range
Fast
Time taken for protection systems to activate during a fault.
When it comes to Protection Response Time,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
18 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Protection Response Time on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Thermal Fail-Safe Mode
Is there a thermal fail-safe mode?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Emergency mode that safely disables charging during extreme heat.
When it comes to Thermal Fail-Safe Mode,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
7 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Thermal Fail-Safe Mode on Efest SLIM K4
◉ and help others decide!
Compatibility & Standards
12
Efest SLIM K4
Cross-Brand Compatibility
How broad is cross-brand compatibility?
63
Efest SLIM K4
0
Votes
Wide
80
Chargers in this range
Universal
Efest SLIM K4
Cross-brand compatibility is wide, meaning it can safely charge devices from many different manufacturers.
Level of compatibility across different device brands.
When it comes to Cross-Brand Compatibility,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
17 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Cross-Brand Compatibility on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
USB Power Delivery
Does it support USB Power Delivery?
No
0Votes
Efest SLIM K4
Yes
Chargers in this range
Indicates support for the USB Power Delivery standard for fast and flexible charging.
When it comes to USB Power Delivery,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
USB Power Delivery on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Quick Charge
Does it support Quick Charge?
No
0Votes
Efest SLIM K4
Yes
Chargers in this range
Indicates compatibility with Qualcomm Quick Charge technology.
When it comes to Quick Charge,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Quick Charge on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
PPS
Does it support PPS?
No
0Votes
Efest SLIM K4
Yes
Chargers in this range
Supports Programmable Power Supply for efficient fast charging.
When it comes to PPS,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
PPS on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Apple Charging
Is it compatible with Apple devices?
No
0Votes
Efest SLIM K4
Yes
Chargers in this range
Optimized compatibility with Apple devices and charging requirements.
When it comes to Apple Charging,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Apple Charging on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Android Charging
Is it compatible with Android devices?
No
0Votes
Efest SLIM K4
Yes
Chargers in this range
Ensures compatibility with Android devices and charging protocols.
When it comes to Android Charging,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Android Charging on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Laptop Charging
Can it charge laptops?
No
0Votes
Efest SLIM K4
Yes
Chargers in this range
Indicates whether the charger can power laptops.
When it comes to Laptop Charging,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Laptop Charging on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Tablet Charging
Does it support tablet charging?
No
0Votes
Efest SLIM K4
Yes
Chargers in this range
Indicates compatibility with tablets and similar devices.
When it comes to Tablet Charging,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Tablet Charging on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Wearable Charging
Can it charge wearables?
No
0Votes
Efest SLIM K4
Yes
Chargers in this range
Supports charging of wearables like smartwatches or earbuds.
When it comes to Wearable Charging,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Wearable Charging on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Backward Compatibility
Is it backward compatible?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Maintains compatibility with older charging standards and devices.
When it comes to Backward Compatibility,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
7 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Backward Compatibility on Efest SLIM K4
◉ and help others decide!
When it comes to Proprietary Protocol,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Proprietary Protocol on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Wireless Charging Standard
Which wireless charging standard is supported?
93
Efest SLIM K4
0
Votes
Qi2
39
Chargers in this range
Qi
Specifies the wireless charging standard supported.
When it comes to Wireless Charging Standard,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
54 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Wireless Charging Standard on Efest SLIM K4
◉ and help others decide!
Thermal & Environmental Performance
10
Efest SLIM K4
Storage Temperature Range
What is the storage temperature range?
43
Efest SLIM K4
0
Votes
-4–140°F
51
Chargers in this range
-4–140°F
Efest SLIM K4
The specified storage temperature is from -4°F to 140°F, which converts to approximately -20°C to 60°C.
This wide range ensures the charger can be safely stored in varied conditions without damage.
Temperature range safe for storing the charger when not in use.
When it comes to Storage Temperature Range,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
8 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Storage Temperature Range on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Thermal Dissipation Method
How does it dissipate heat?
0
Efest SLIM K4
0
Votes
Passive
0
Chargers in this range
Passive
Efest SLIM K4
Thermal dissipation method is passive, relying on natural heat dissipation without fans, reducing noise and maintenance.
Method used to release heat during operation.
When it comes to Thermal Dissipation Method,
Efest SLIM K4 ◉ is
same as
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Thermal Dissipation Method on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Ambient Temperature Tolerance
How tolerant is it to ambient temperatures?
33
Efest SLIM K4
0
Votes
Medium
42
Chargers in this range
Medium
Efest SLIM K4
Supports devices within a medium range of ambient operating temperatures for safe and efficient performance.
Ability to perform in varying ambient temperatures.
When it comes to Ambient Temperature Tolerance,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
9 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Ambient Temperature Tolerance on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Operating Temperature Range
What is the operating temperature range?
43
Efest SLIM K4
0
Votes
32–104°F
48
Chargers in this range
32–104°F
The temperature range within which the charger operates safely.
When it comes to Operating Temperature Range,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
5 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Operating Temperature Range on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Internal Cooling Design
What internal cooling design is used?
33
Efest SLIM K4
0
Votes
Heat Sink
30
Chargers in this range
Heat Sink
Internal structure designed to manage heat.
When it comes to Internal Cooling Design,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
3 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Internal Cooling Design on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Fanless Design
Is the charger fanless?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Indicates whether cooling is achieved without a fan.
When it comes to Fanless Design,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
6 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Fanless Design on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Noise Level
How noisy is the charger?
0
dB
0Votes
0.29
dB (Average)
Operational noise produced during charging.
When it comes to Noise Level,
Efest SLIM K4 ◉ is
same as
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Noise Level on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Thermal Throttling Threshold
At what temperature does throttling occur?
140
°F
0Votes
158.08
°F (Average)
Temperature at which charging power is reduced to prevent overheating.
When it comes to Thermal Throttling Threshold,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
18.1 °F
measurement.
Don’t keep it to yourself — be the first to react and review the
Thermal Throttling Threshold on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Energy Loss as Heat
How much energy is lost as heat?
0
Efest SLIM K4
0
Votes
Moderate
66
Chargers in this range
Low
Percentage of input energy lost as heat during charging.
When it comes to Energy Loss as Heat,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
66 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Energy Loss as Heat on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Sustained Load Temperature Stability
How stable is temperature under sustained load?
93
Efest SLIM K4
0
Votes
Stable
81
Chargers in this range
Stable
Temperature stability during prolonged high-load charging.
When it comes to Sustained Load Temperature Stability,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
12 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Sustained Load Temperature Stability on Efest SLIM K4
◉ and help others decide!
Usability & Convenience
12
Efest SLIM K4
Plug Orientation
What is the plug orientation?
13
Efest SLIM K4
0
Votes
Straight
16
Chargers in this range
Straight
Efest SLIM K4
The plug orientation is straight, which impacts how the charger fits in outlets and spaces.
Orientation of the plug relative to the charger body.
When it comes to Plug Orientation,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
3 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Plug Orientation on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Cable Management
How is the cable managed?
73
Efest SLIM K4
0
Votes
Detachable
47
Chargers in this range
External
Efest SLIM K4
Cable management is facilitated with a detachable cable, allowing for easier storage and replacement.
How the charging cable is managed when not in use.
When it comes to Cable Management,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
26 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Cable Management on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Setup Complexity
How complex is setup?
43
Efest SLIM K4
0
Votes
Plug-and-Play
41
Chargers in this range
Plug-and-Play
Efest SLIM K4
Setup complexity is plug-and-play, enabling users to start charging without complicated installation.
Effort required to start using the charger.
When it comes to Setup Complexity,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
2 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Setup Complexity on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
LED Indicators
Does it have LED indicators?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Presence of LED lights to show charging or power status.
When it comes to LED Indicators,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
21 score
measurement.
Don’t keep it to yourself — be the first to react and review the
LED Indicators on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Foldable Plug
Does it have a foldable plug?
No
0Votes
Efest SLIM K4
Yes
Chargers in this range
Indicates whether the plug can fold for easier storage and travel.
When it comes to Foldable Plug,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Foldable Plug on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Indicator Behavior
How do the indicators behave?
63
Efest SLIM K4
0
Votes
Color-Coded
33
Chargers in this range
Solid
How indicator lights behave during operation.
When it comes to Indicator Behavior,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
30 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Indicator Behavior on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
User Feedback Method
How does it provide user feedback?
43
Efest SLIM K4
0
Votes
LED
43
Chargers in this range
LED
Methods used to communicate status to the user.
When it comes to User Feedback Method,
Efest SLIM K4 ◉ is
same as
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
User Feedback Method on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
One-Hand Operation
Can it be operated with one hand?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Allows easy plugging and unplugging with one hand.
When it comes to One-Hand Operation,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
6 score
measurement.
Don’t keep it to yourself — be the first to react and review the
One-Hand Operation on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Travel Friendly
Is it travel-friendly?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Designed for easy transport and use while traveling.
When it comes to Travel Friendly,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
6 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Travel Friendly on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Maintenance Requirements
Does it require maintenance?
43
Efest SLIM K4
0
Votes
Low
73
Chargers in this range
None
Level of maintenance needed to keep the charger functioning well.
When it comes to Maintenance Requirements,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
30 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Maintenance Requirements on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Daily Use Convenience
How convenient is it for daily use?
93
Efest SLIM K4
0
Votes
High
85
Chargers in this range
High
Overall convenience during everyday use.
When it comes to Daily Use Convenience,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
8 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Daily Use Convenience on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Firmware Upgradable
Can the firmware be updated?
No
0Votes
Efest SLIM K4
Charger in this range
Who knows?
(Help us out by suggesting one!)
Indicates whether the charger firmware can be updated.
Don’t keep it to yourself — be the first to react and review the
Firmware Upgradable on Efest SLIM K4
◉ and help others decide!
Durability & Reliability
9
Efest SLIM K4
Manufacturing Quality Level
What is the manufacturing quality level?
43
Efest SLIM K4
0
Votes
Standard
53
Chargers in this range
Premium
Efest SLIM K4
Manufacturing quality is rated as standard, ensuring reliable performance and durability consistent with typical industry expectations.
Overall manufacturing quality classification.
When it comes to Manufacturing Quality Level,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
10 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Manufacturing Quality Level on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Rated Lifespan
How long is the rated lifespan?
93
Efest SLIM K4
0
Votes
Long
71
Chargers in this range
Long
Expected operational lifespan of the charger under normal usage conditions.
When it comes to Rated Lifespan,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
22 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Rated Lifespan on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Mean Time Between Failures
How reliable is the charger over time?
93
Efest SLIM K4
0
Votes
High
73
Chargers in this range
High
Average reliability level indicating how often failures are expected.
When it comes to Mean Time Between Failures,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
20 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Mean Time Between Failures on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Plug Insertion Cycles
How durable is the plug connection over time?
43
Efest SLIM K4
0
Votes
Medium
70
Chargers in this range
High
Indicates how many plug-in and unplug cycles the charger connector is designed to withstand before wear affects performance.
When it comes to Plug Insertion Cycles,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
27 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Plug Insertion Cycles on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Port Wear Resistance
How resistant are the ports to wear?
43
Efest SLIM K4
0
Votes
Medium
65
Chargers in this range
High
Resistance of charging ports to wear over time.
When it comes to Port Wear Resistance,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
22 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Port Wear Resistance on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Cable Flex Cycles
How durable is the charging cable under repeated bending?
43
Efest SLIM K4
0
Votes
Medium
43
Chargers in this range
Medium
Indicates how many bending cycles the charging cable can withstand before performance degradation.
When it comes to Cable Flex Cycles,
Efest SLIM K4 ◉ is
same as
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Cable Flex Cycles on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Long-Term Stability
How stable is long-term performance?
93
Efest SLIM K4
0
Votes
Stable
83
Chargers in this range
Stable
Performance consistency over extended use periods.
When it comes to Long-Term Stability,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
10 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Long-Term Stability on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Environmental Stress Resistance
How resistant is it to environmental stress?
43
Efest SLIM K4
0
Votes
Medium
45
Chargers in this range
Medium
Ability to withstand heat, humidity, and other stresses.
When it comes to Environmental Stress Resistance,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
2 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Environmental Stress Resistance on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Reliability Certification
Is reliability certified?
No
0Votes
Efest SLIM K4
Yes
Chargers in this range
Indicates whether reliability has been independently certified.
When it comes to Reliability Certification,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Reliability Certification on Efest SLIM K4
◉ and help others decide!
Energy & Efficiency Compliance
8
Efest SLIM K4
Energy Efficiency Rating
What is the energy efficiency rating?
43
Efest SLIM K4
0
Votes
Medium
78
Chargers in this range
High
Overall classification of how efficiently the charger converts power.
When it comes to Energy Efficiency Rating,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
35 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Energy Efficiency Rating on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Energy Star Compliance
Is it Energy Star compliant?
No
0Votes
Efest SLIM K4
Yes
Chargers in this range
Indicates compliance with Energy Star efficiency standards.
When it comes to Energy Star Compliance,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Energy Star Compliance on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Standby Efficiency
How efficient is the charger in standby mode?
43
Efest SLIM K4
0
Votes
Medium
77
Chargers in this range
High
Indicates how efficiently the charger uses power while plugged in but not actively charging.
When it comes to Standby Efficiency,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
34 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Standby Efficiency on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Eco Mode
Does it support eco mode?
No
0Votes
Efest SLIM K4
Charger in this range
Who knows?
(Help us out by suggesting one!)
Reduces power consumption when full charging is not required.
Don’t keep it to yourself — be the first to react and review the
Eco Mode on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Power Loss Rating
How much power is lost during operation?
43
Efest SLIM K4
0
Votes
Medium
76
Chargers in this range
Low
Indicates the amount of input power lost during conversion and operation.
When it comes to Power Loss Rating,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
33 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Power Loss Rating on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Green Materials Usage
Are green materials used?
No
0Votes
Efest SLIM K4
Yes
Chargers in this range
Uses environmentally friendly or recycled materials.
When it comes to Green Materials Usage,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Green Materials Usage on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Carbon Footprint Category
What is the carbon footprint category?
43
Efest SLIM K4
0
Votes
Medium
49
Chargers in this range
Medium
Estimated environmental impact from production and use.
When it comes to Carbon Footprint Category,
Efest SLIM K4 ◉ is
worse than
Charger in this range ◉
, delivering
equal
6 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Carbon Footprint Category on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Energy Saving Features
Does it have energy-saving features?
Yes
0Votes
Efest SLIM K4
Yes
Chargers in this range
Built-in features designed to reduce energy consumption.
When it comes to Energy Saving Features,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
12 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Energy Saving Features on Efest SLIM K4
◉ and help others decide!
Warranty & Support
4
Efest SLIM K4
Warranty Length
How long is the warranty?
33
Efest SLIM K4
0
Votes
1 Year
31
Chargers in this range
1 Year
Efest SLIM K4
The warranty length is 1 year, offering a limited period of manufacturer coverage against defects.
Duration of warranty coverage provided with the charger.
When it comes to Warranty Length,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
2 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Warranty Length on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Customer Support Availability
When is customer support available?
43
Efest SLIM K4
0
Votes
Business Hours
43
Chargers in this range
Business Hours
Efest SLIM K4
Customer support is available during business hours, providing assistance when needed within standard times.
Availability of customer support services.
When it comes to Customer Support Availability,
Efest SLIM K4 ◉ is
same as
Charger in this range ◉
.
Don’t keep it to yourself — be the first to react and review the
Customer Support Availability on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Support Channels
What support channels are available?
43
Efest SLIM K4
0
Votes
Email, Online Portal
39
Chargers in this range
Email, Online Portal
Ways users can contact customer support.
When it comes to Support Channels,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
4 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Support Channels on Efest SLIM K4
◉ and help others decide!
Efest SLIM K4
Replacement Policy
What is the replacement policy?
63
Efest SLIM K4
0
Votes
Standard Returns
53
Chargers in this range
Standard Returns
Defines the terms under which a defective or faulty charger can be replaced.
When it comes to Replacement Policy,
Efest SLIM K4 ◉ is
better than
Charger in this range ◉
, delivering
higher
10 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Replacement Policy on Efest SLIM K4
◉ and help others decide!
Surveys
Because hot takes deserve votes.
Efest SLIM K4
Charging Speed
How satisfied are you with the charging speed of this chargers when powering everyday devices?
Extremely fast charging — Under 1 hour
0Votes
Very fast charging — 1 to 2 hours
0Votes
Decent charging speed — 2 to 4 hours
0Votes
Slow charging — 4 to 6 hours
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Very slow charging — Over 6 hours
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Efest SLIM K4
Power Output Performance
How well does this chargers provide enough power for phones, tablets, or laptops?
Handles high-demand devices easily — 65 watts or more
0Votes
Strong and reliable output — 45 to 64 watts
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Good for most daily devices — 25 to 44 watts
0Votes
Limited power capability — 10 to 24 watts
0Votes
Very weak power delivery — Under 10 watts
0Votes
Efest SLIM K4
Durability and Build Quality
How durable does this chargers feel during long-term daily use?
Feels built to last a long time — Over 5 years
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Very solid and dependable — 3 to 5 years
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Decently built for regular use — 2 to 3 years
0Votes
Feels somewhat fragile — 1 to 2 years
0Votes
Breaks down too quickly — Under 1 year
0Votes
Efest SLIM K4
Portability and Size
How easy is it to carry this chargers for travel or commuting?
Ultra compact and pocketable — Under 3 ounces
0Votes
Light and travel friendly — 3 to 5 ounces
0Votes
Moderately easy to carry — 5 to 7 ounces
0Votes
Somewhat bulky — 7 to 10 ounces
0Votes
Heavy and inconvenient — Over 10 ounces
0Votes
Efest SLIM K4
Heat Management
How well does this chargers control heat during extended charging sessions?
Stays cool even under heavy use — Under 90 degrees Fahrenheit
0Votes
Gets slightly warm — 90 to 100 degrees Fahrenheit
0Votes
Noticeably warm to the touch — 100 to 110 degrees Fahrenheit
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Runs quite hot — 110 to 120 degrees Fahrenheit
0Votes
Uncomfortably hot — Over 120 degrees Fahrenheit
0Votes
Efest SLIM K4
Ease of Use
How easy is it to use this chargers on a daily basis?
Effortless and intuitive — No learning needed
0Votes
Very easy to understand — Minimal effort
0Votes
Takes a little getting used to — Some adjustment
0Votes
Slightly confusing at times — Requires patience
0Votes
Frustrating to use — Feels complicated
0Votes
Efest SLIM K4
Setup Experience
How smooth is the initial setup experience with this chargers?
Instantly ready to use — Plug and charge
0Votes
Quick and simple setup — Less than 1 minute
0Votes
Setup takes some attention — A few minutes
0Votes
Setup feels awkward — Several minutes
0Votes
Setup feels annoying — Too many steps
0Votes
Efest SLIM K4
Design and Visual Appeal
How attractive does the design of this chargers look in everyday environments?
Sleek and modern look — Feels premium
0Votes
Clean and stylish design — Looks nice
0Votes
Simple and acceptable — Nothing special
0Votes
Somewhat unattractive — Feels dated
0Votes
Cheap-looking design — Not appealing
0Votes
Efest SLIM K4
Noise and Comfort
How comfortable is this chargers to use in quiet environments?
Completely silent operation — No noise at all
0Votes
Almost silent — Barely noticeable
0Votes
Occasionally noticeable — Slight sound
0Votes
Clearly noticeable noise — Can be distracting
0Votes
Annoyingly loud — Very disruptive
0Votes
Efest SLIM K4
Pricing and Value
How do you feel about the price of this chargers compared to what it offers?
Supermod
Moderator
