SLIM K4 Charger is an intelligent charger with a Type-C USB charging port. It is compatible with Lithium IMR 3.6V/3.7V batteries: 10440, 14500, 16340, 17340, 18350, 18490, 18500, 18650, 26500, 26650, 20700, 21700. LED indicator will show you the status of charger: indicator turns blue in standby mode/full charged, and white colour in charging. SLIM K4 Charger is designed with some smart functions, such as auto-detect charging, monitors and charging each slot independently, low voltage smart activation recovery function, and 0V activation recovery function. Besides, it is safe for you to use with a built-in intelligent protection chip.

Features:
LED indicator description
Auto-detect charging
Safe charging mode: CC & CV
Safe and convenient USB charger (5V 2A)
Monitors and charges each slot independently
Low voltage smart activation recovery function
Incredibly lightweight and conveniently portable
Type-C USB charging port design
Built-in intelligent protection chip
0V activation recovery function
High-quality ABS fire-retardant material & electronic component
Safety protections: Short Circuit/Automatic Over-charging/Automatic Over-discharging/Reverse Polarity/0V Activation Recovery/Hardware and Software Double Protection

Includes:
Efest SLIM K4 Charger (batteries not included)
Manual Card