LCD Digital Battery Capacity Checker RC CellMeter-8 1-8S Battery Capacity Voltage Test Meter LiPo Li-lon Nicd NiMH Li-fe meter 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(%). Lithium battery type (Li-Po, Li-Ion, Li-Fe), CellMeter 8 can support 2S-8S without additional power supply. To test a 1S lithium battery, you need to connect a nickel battery larger than 3S or UBEC 5V to the NiCd/MH port to provide working power for CellMeter 8. Nickel battery type (NiCd or NiMH), CellMeter 8 can support 4S-8S without additional power supply. If you need to test nickel batteries smaller than 4S, you need to connect 2-8S lithium batteries to the Lithium port to provide work for CellMeter 8 power supply. Color: As shown Material: plastic Package Contents: 1x servo tester