The battery monitor can be widely used in various battery electric equipment, such as lithium batteries, lead-acid batteries, car batteries, and electric vehicle batteries. It can also be used to test battery voltage and capacity for electric motorcycles, golf carts, automobiles, cars, RV, boats, etc. The voltage calculation principle is the same as that of the electric vehicle power display meter.SpecificationMaterial: PlasticModel: Waterproof 72V Lead-Acid Display Color: RedMeasuring Range: 0-72VLead Length: 285mm/11.2inchSize: 48 x 29 x 17mm/1.9 x 1.1 x 0.7inch(L*W*H)Packing List: 1 x Voltage Battery MonitorAdvantageThe battery capacity and voltage are displayed simultaneously, which is clear and more intuitive. The upper row has 8 color bars (2 red and 6 green) to display the battery capacity.