jrelecs 2.1" Screen RC Cell Meter-8 Digital Battery Capacity Checker For LiPo/LiFe/Li-ion/NiCd/NiMH Support Battery Type:LiPo, LiFe, Li-ion, NiCd, NiMH Servo Test Mode:Manual adjustment, Auto Matic, Neutral Servo Test Frequency: 50Hz, 60Hz, 100Hz, 125Hz, 200Hz, 250Hz, 300Hz Display Mode: Battery cell voltages, Total Voltages, Lowest cell voltage, Highest cell voltage, Voltage gap between highest cell voltage and Lowest cell voltage, Remaining battery capacity(%).