GOLISI O2 is an economic and practical battery charger. It convert the high electricity voltage into suitable for battery charging. It is non-button operation and automatically distribute current to each cell.
Military grade loading spring bigger than 100k cycle life.
1.Military Grade Quality Spring
2.Smart and automatic
3.Built-In USB Output that can be used as a "POWER BANK"
4.2A Lighting Fast charging
5.Automatic Smart Temperature Regulation and Protection
6.Reverse Polarity Prevention
Note: The battery is not included.
Charger Cell Type: Ni-MH , NiCd , Lithium Ion
Charging Battery Type: 21700 , 18650 , AA , AAA , 26650