7.4v 5200mAh Lithium-ion battery for heated jackets with 4-heat settings & power indication(LX-DRF02DH ... 230g/pc) Application: heated base layers, heated underwears, heated jackets, heated vests, heated pants, heated clothing, heated clothes, ... heated garments, heated apparel, heated motorcycle clothes, heated motorcycle jackets, heated motorcycle vests, heated motorcycle pants, warming apparel, ...