Cost-effective and easy to use, Efest SLIM K4 charger comes with novel 7 languages packaging and user user manual! Incredibly lightweight and conveniently portable

Parameters:
- Input: DC 5V 2A
- ABS Fireproof Materials
- Type-C USB line
- 1A x 2 or 4 X 0.5A charging
- Lithium cell from 10440 to 18650 21700 20700 26650
- Operation temperature: -40°C - +70°C

Features:
- LED indicator description
- Auto-detect charging current: 2 X 1.0A/ 1 X 1 -OA /4 XO.5A/3X 0.5A
- 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