Features: Equipped with LCD display, you can see the electric quantity, voltage, current clearly. Help testing the voltage, current and capacity of battery to help users know the state of battery-in-time. Suitable for mobile and portable equipment, e-bike, balance-cars, cleaning machines, instruments, and so-on. This coulomb counter is suitable for all kinds of electric vehicles, emergency-power supplies, energy storage power supplies, medical-equipment, etc. The voltage range is 8-100V. With stand high voltage and high current. Specifications: Material:Plastic Size:Approx.3.33x6.12x1.4 5cm/1.31x2.4x0.57inch Color: Black Note: .Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. .Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1x Battery Capacity Tester