This is 18650 lithium ion battery with button head. This is VIPOW brand Battery. 18650 battery is extensively used is many accessories. This is rechargeable Battery. To charge this battery you need lithium ion Chargers or 4056 module.
Battery Specification-
Voltage - 3.7v
Full charge Voltage - 4.2v
Low discharge Voltage - 3.2v
Capacity - 2200mah max.
Package Include-
1 X 18650 Battery
2200mah 3.7volt VIPOW Button head 18650 Lithium Ion Cell Battery
Product Dimension-
L X W X H - 18 x 18 x 65mm
Weight - 28grms
Country Of Origin : China