- VENDOR: Efest
- TYPE: Battery Charger
Efest Slim K2 Charger
Easy Returns
Changed your mind? No problem. Check out our return policy or reach out to our team if you have questions
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.
Specifications:
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
- Standard delivery within 2–5 business days
- Easy 14-day returns
- Return items in original condition for a full refund

