I find this battery checker to be one of those tools that, once you have one you would never be without it. Absolutely essential for electric aeromodelling and looking after your batteries.
This is easily the #1 tool in my flight box.
Supports Battery Type: LiPo, LiFe, Li-ion, NiCd, NiMH
Cell number: NiCd/NiMH (4-8 cells), Lithium type (1-8 cells).
Servo Test Mode: Manual adjustment, Automatic, Neutral
Servo Test Frequency: 50Hz, 60Hz, 100Hz, 125Hz, 200Hz, 250Hz, 300Hz
Displays: Battery cell voltages, Total Voltages, Lowest cell voltage, Highest cell voltage, Voltage gap between highest cell voltage and Lowest cell voltage, Remaining battery capacity(%).