Name: 3.7V 18650 Li-ion battery Charger
Input: AC: 100 ~ 240V 50 / 60Hz
No-load voltage: DC4.2V
Load current: 350mA, ± 20mA
Battery charge rate: ≥94%
Output: 4.2V 500mA
Short circuit protection, there is a fuse inside to prevent electrical short circuits from causing danger and ensure safe use.
The green light is on when no-load, the red light is on when loaded, and green light is on when being fully charged,please ensure that the battery is fully charged without overcharging and safe to use.