GoolRC RC CellMeter-7 Digital Battery Capacity Checker LiPo LiFe Li-ion NiMH Nicd Use for LiPo LiFe Li-ion NiMH Nicd battery. Display Mode: Battery cell voltages, total voltages, lowest cell voltage, Highest cell voltage gap between highest cell voltage and lowest cell voltage, Remaining battery capacity(%). High quality, safe and durable.