Efest SLIM K2 1A USB-C Battery Charger

Charging Status: White Color = Charging, Blue = Fully Charged

The Efest Slim K2 is a professional portable two-slow Li-ion battery charger with a USB-C charging port (2021 Version). It has a fast-charging mode that is 1.0A (4.2V 2pcs x 1.0A) and can accept 3.6V or 3.7V lithium batteries in various sizes (sold separately). The Efest Slim K2 features reverse polarity protection, activation function, auto-detect charging function, over-charging protection, and short circuit protection. The spring in the charger is made of piano wire that provides smooth sliding action when installing and removing batteries and a steel cathode with low resistance and hard chromium plating processing is used to achieve a more precise charging voltage. Each slot on the Efest Slim K2 Charger monitors batteries separately and has a convenient LED indicator that displays battery life.

Product Specification: 

Compatible with: 18350, 18490, 18500, 18650, 20700, 21700, 26650 batteries, Can charge 2 batteries at the same time (all sizes)

AC Input Power AC 100-240V 50/60Hz

DC Output Power DC 5V 2A

Auto Cut-Off Voltage 4.20±0.05V

Standby Current <20mAh

Auto Recharge Voltage 4.10±0.10V

Storage Temperature -40℃~+70℃

DC Input Power DC 5V 2A

1A CC Current <100mAh

CV Cut-Off Current < 100mAh

Activation Current 50mA~100 mA

Operation Temperature 0℃~40℃

Charging Port: USB-C

Product Includes:

Efest Slim K2 Charger

USB-C Cable

Operation Manual

Warranty Card