... Dimension(D*H)250*150*140mmWorking temperatureCharge Temperature0~45°CDischarge Temperature-20~65°CRetention of charge ... etc.,the identification 2. should be clear and correct.3. There should be clear polar ... all connection included cell to cell, data wires between cells and BMS, BMS to the cell, BMS 2 ... and the battery be recharged3. Store in an open,well ventilated,dry,clean area, between -20°C to 40°C ...