Versatile: The cell meter has multiple functions as it can display estimated voltages for LiPo/LiFe/Li-ion packs (2-7 cells) and individual cells and NiCd/NiMH batteries for TX and RX ( 4-7 cells).The battery capacity checker can quickly check the estimated capacities of the lithium battery pack and indicate whether it needs to be recharged before use. Battery type: NiCd / NiMH (4 to 7 cells), lithium type (2 to 7 cells) Display mode: battery cell voltages, total voltages, lowest cell voltage, battery voltage deviation highest cell voltage between the highest cell voltage and the lowest cell voltage, remaining battery capacity (%). Application: Apply to check batteries.It is very convenient to read your cell voltage.High quality, safe and durable, tiny and compact, easy to understand and use.High quality and lightweight with excellent performance.