lithium ion rechargeable battery 1.Long lifecycles 200+cycles 2.no memeory effect 3.UL,CE 4.professional workers lithium ion rechargeable battery 2000mAh 3.7v 3.7v Lipo ... battery,Li-polymer battery,polymer battery, lipo pack,battery pack,high capacity battery LiPo Battery for PortableAdvantage of lithium ion batteries ...