OptimumNano Energy CO.,LTD is professional manufacturer and exporter of LiFePO4 battery in China since 2002. All of our cells and batteries are approved by BV , SGS , TS16949 , ISO9001 , UL , CE , IEC62133 etc Certificates.Our main original product is LiFePO4 cells, we pack the battery according to customers' detailed requirements. We cooperate with energy&power solution company, such as UPS, Solar&Wind System, E-Vehicles(E-Bus,Golf Cart, E-forklift,E-Bike, E-Boat), offering them quality cells, semi-finished, finished, OEM, ODM battery. Product items: LiFePO4 Cells and Battery Product Certificates: BV, SGS, TS16949,PSE, UN38.3, MSDS, ISO9001, UL, CE, RoHs, IEC62133 Product Type: LiFePO4 Cells, Semi-Finished, Finished, OEM, ODM battery. Product Range: From 3.2V1AH (Single Cells) to 540V900AH (E-Bus Battery) Product Application: Cooperate with UPS, Solar&Wind System, E-Vehicles company Product Market: All over the world Product Warranty: Offer best and detailed practical before-sell specification and after-sell service e-mail: info@optimumchina.com OPTIMUMNANO ENERGY CO.,LTD Web: www.optimumnanoenergy.com Tel: +0086-755-84630787