Features:

Automatic stop when battery is full (no overcharging risk)

Smart charging mode: CCCV at 3.7V / 4.2V, 2A

Indicator: Red (Charging), Blue (Fully charged)

Input: Type-C, 5V 2A

Output: 3.7V / 4.2V at 2A (CCCV)

Protection: Reverse polarity, overcharge, safe temp control

Not suitable for old batteries with high resistance

Continues charging at 0.5A after blue light

Extra 30–60 mins charging for full saturation

Compatible: 16340 to 26650 lithium batteries

Not supported: Ni-MH (Nickel Metal Hydride)

Stable and reliable performance