This LCD display supports various batteries(Li-ion/LiFePo4/Lead-acid),<br> supported voltage renge is 9V~100V, (12V/24V/36/72V/80V)<br> can display battery capacity(Coulomb meter statistics, accurate capacity)<br> current (Hall reads current),<br> charge and discharge time,<br> battery persentage,<br> battery power,<br> Product parameters: Product name: coulomb meter<br> Working voltage: 8~~100v<br> Current range: 100A/200A/300A/400A/50A/100A<br> Capacity range: 0~99999Ah<br> Working current: 7.5mA<br> The current after closed backlight: 3.5mA<br> Voltage precision: 1%(±1 C)<br> Current precision: 1%(±1 C)<br> Capacity precision: 1%(±1 C)<br> Size: 79X43X27mm<br> Cut hole size: 76.5X39.5mm<br> LCD size: 49X24mm<br> Backlight color: green<br> Working temperature: -10~65℃<br> Wire length: 15cm<br> Colour:black<br> Material: ABS<br> <br> Package Contents:<br> 1 x Hall Coulomb Meter<br> Only the above package content, other products are not included.<br> 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.