... 4.CE,ROHS,UL 5.For led lights,ups backup battery,power tools ItemContentCapacityNominal Capacity: 4000 mAh Typical Capacity: 3950 mAh Minimum ... including:High-End FlashlightsLaptop Battery Cell ReplacementsCustomized Battery Pack SolutionsRC Applications, car, plane etcSafety, Alarm, metering, power backup etcBuilding portable power device that needs ...