The Efest Slim K1 Single Bay Battery Charger is an intelligent vape battery charger capable of charging a single cell. The battery bay utilises a spring made from piano wire to provide a smooth sliding action when installing and removing batteries. As with all their devices Efest has included a vivid and intuitive LED display, which shows the user when batteries are charging and when they are fully charged with auto stop functionality. The Efest Slim K1 Charger features reverse polarity, short circuit, overcharge protection and many more safety features.

EFest Slim K1 Charger Features

• Fast charging mode: 1.0A
• Fits various 3.6V and 3.7V Li-ion batteries
• Reverse polarity protection
• Activation function
• Auto-detect charging function
• Over-charging protection
• Short circuit protection
• CE and RoHS certified
• Spring made from piano wire provides a smooth sliding action when installing and removing the battery
• Steel cathode with low resistance and hard chromium plating achieves a more precise charging voltage
• AC input power: AC 100~240V 50/60Hz
• DC output power: DC 5V 1A
• Auto cut-off voltage: 4.20+/-0.5V
• Standby Current: <20mA
• Auto recharge voltage: 4.10+/-0.10V
• Storage temperature: 40-70 C
• DC input power: DC 5V 1A
• 1A CC current: 1000mA+/-10%
• CV cut-off current: ,100mA
• Activation current: 50mA~100mA
• Operation temperature: 0-40C

Slim K1 Charger Compatibility 

Compatible with: 10440, 14500, 14650, 16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 21700, 26500, 26650

Box Contents

• 1 x Efest Slim K1 Charger
• 1 x USB Cable