WARNING: This Product Contains Nicotine. Nicotine is an addictive chemical.

Efest SLIM K2 Charger

EFEST Slim K2 Intelligent Charger

Compatible with Lithium IMR 3.6V/3.7V Batteries: 10440 / 14500 / 16340 / 17340 / 18350 / 18490 / 18500 / 18650 / 26500 / 26650 / 20700 / 21700

Lightweight, practical, and fashionable, the Efest Slim K2 Intelligent Charger is incredibly convenient. The new 2019 version also comes with a user manual and packaging with instructions in 7 different languages.

Stylish & Eye Catching Design

High Quality Fire-Retardant Material

Fast Charging Mode: 1.0A (4.2V 2 x 1.0A)

Reverse Polarity Protection

Activation Function

Auto-Detect Charging Function

Over-Charging Protection

Short-Circuit Protection

HIGH QUALITY CRAFTSMANSHIP: Spring made by piano wire, it provides a smooth sliding action when installing and removing batteries. Steel cathode with low resistance and hard chromium plating processing to achieve a more precise charging voltage. 15,000 + times spring testing quality warranty.


AC Input Power ———— AC 100~240V 50/60Hz

DC Input Power ———— DC 5V 2A

DC Output Power ———— DC 5V 2A

2*1A CC current ———— 1000mA+-10%

Auto cut-off voltage ———— 4.20V+-0.05V

CV cut-off current ———— <100mA

Standby Current ———— <20mA

Activation Current ———— 50mA~100mA

Auto recharge voltage ———— 4.10+-0.10V

Operation Temperature ———— 0°C~40°C

Storage Temperature ———— -40°C~+70°C