... 1. Battery: Li Ion Battery Pack 18500 1S2 3.7V 3000mAh 2.Certificate: CE,UL,MSDS 3.A Grade Battery 4.OEM/ ... ODM Battery Maker Supply Li Ion Battery Pack 18500 1S2P 3.7V 3000mAh CE UL1. Battery: Li Ion Battery ... Pack, 18500 1S2P, 3.7V,3000mAh2.Certificate: CE,UL,MSDS3.A Grade Battery4 ... ,+86-312 332 8797 Supply Li Ion Battery Pack 18500 1S2P 3.7V 3000mAh CE UL