COMPANY PROFILE UPP is a professional manufacturer specialize in manufacturing ebike , RC airplane polymer battery , lifepo4 battery pack and batteries for other devices . Our factory is Certified by ISO9001 , and most batteries have UN38.3,MSDS,CE,ROHS certification . We cooperate with many brand cell manufacture to ensure the battery quality . We export to European , American,Australia ,South Asia and other market .Our Brand "UPP" is known to more and more customers because of good quality and after sell sevice . UPP person only do one thing that is to ensure every customer use a green , environmental and safe battery .FACTORY INTRODUCTION SIEKO IC BMS for battery over charge , over discharge ,short cirrcuit protection . Battery cells 100% balance before pack for voltage ,resistence and capacity . Final battery pack 100% discharge and charge test , waterproof , Vilbration Test . 100% inspection of appearance and function by QC before shipping .