... effect 3.UL,CE 4.professional workers lithium ion batteries for sale 2000mAh 3.7v 3.7v Lipo battery,Li-polymer ... ,battery pack,high capacity battery LiPo Battery for PortableAdvantage of lithium ion batteries for sale 2000mAh 3.7v :1.Long cycle life ... , handy terminal battery, mini disc player battery, E-cigarette battery,E-bike battery,E-scooter battery,EV battery,UPS batteryetc.Marketing and Factory ...