1:60V/20AH or 60V/40AH Lithium rechargeable battery 2:Deep cycle times,high capacity 3:Green energy, quality approvals. 1.Basic CharacteristicsProduct NameTH ... storage, charge one time every 2 months)-10~40°CConstant Capacity≥20AhCycle Life600 Times(1C cycle to 60%,100%DOD)2 ... CB ROHS UN38.3 ISO14000 ISO9000 and so on 60V high capacity lithium ups battery packs for HEV,UPS