Best Efest SLIM K4 Charger

Superior craftsmanship is evidenced by springs made of piano wire; steel cathode with low resistance and hard chromium plating to achieve a more precise charging voltage; and 15,000+ spring testing for quality assurance.

Efest SLIM K4 Charger

Six protection levels :

1. Short Circuit protection

2. Automatic over-charging

3. Automatic over-discharging

4. Reverse polarity

5. OV activation recovery function

6. Hardware and software double protection

Features:
1. Fast charging mode: 1.0A (4.2V 2pcs x 1.0A)
2. Install a 3.6V or 3.7V lithium battery in another size
3. Reverse polarity protection
4. Activation
function 5. Automatic detection function charging
6. Overcharge
protection 7. Short circuit protection

Best Efest SLIM K4 Charger

The Efest SLIM K4 Charger is conveniently portable and user-friendly. LED indicators to indicate when the changer is in standby mode;charging, or is fully charged. It charges the batteries automatically within a matter of seconds and is designed with both CC and CV safe charging modes. The slots and monitors charge independently. USB-C port reduces the heat while charging.

Parameters:
• AC input power: AC 100-240V 50 / 60Hz
• DC output power: DC 5V 1A
• Auto cut-off voltage 4.20 ± 0.05V
• Standby current: <20mA
• Auto recharge voltage: 4.10 ± 0.10V
• Storage Temperature : -40 ° C ~ + 70 ° C
• DC input power: DC 5V 1A
• 1A CC current: 1,000mA ± 10%
• CV cut-off current <100mA
• Activation current: 50mA ~ 100mA
• Operation Temperature: 0 ° C ~ 40 ° C