3.7v polymer lithium battery pack 1)made of lithium polymer , 2)high energy density ... , Portable Television, Vehicle DVR; GPS, PDA, E-book, PMP, PSP, Portable Medical Device, Miner Lamp, Searchlight etc.Different sizes and ... BatteriesBattery type/characteristicsAcid batteryNi-CdNi-MHLi ionLithium polymerSafetyGoodGoodGoodnormalExcellentOperating Voltage(V)21.21.23.63.6-3.7Capacity/weight ratio( Wh/Kg) ...