This LCD display supports various batteries(Li-ion/LiFePo4/Lead-acid),supported voltage renge is 9V~100V, (12V/24V/36/72V/80V)can display battery capacity(Coulomb meter statistics, accurate capacity)current (Hall reads current),charge and discharge time,battery persentage,battery power,Product parameters: Product name: coulomb meterWorking voltage: 8~100vCurrent range: 100ACapacity range: 0~99999AhWorking current: 7.5mAThe current after closed backlight: 3.5mAVoltage precision: 1%(1 C)Current precision: 1%(1 C)Capacity precision: 1%(1 C)Size: 79X43X27mmCut hole size: 76.5X39.5mmLCD size: 49X24mmBacklight color: greenWorking temperature: -10~65Wire length: 15cmColour:blackMaterial: ABSPackage Contents:1 x Hall Coulomb MeterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.