HOBBYMATE LiPo Battery Tester - Low Voltage Alarm - Lipo Battery Balancer Discharger - AOK OEM 2s-6s LCD LiPo Battery Balancer + Voltage Meter Tester + Discharger Check and indicates each Lipo Cell Voltage, total Lipo Pack Voltage Use for Lipo, LiFe Battery Instant Discharge the battery before put it in storage Balance each cell Lipo to same voltage