Features: *Wide compatibility: This power meter is suitable for 12V-72V battery vehicles, including lithium batteries, polymer batteries, and nickel-metal hydride batteries. It can also be used for other powervoltage measurement purposes, making it versatile in its application. Not suitable for high-power and high-load vehicles such as large trucks, cranes, and forklifts. *Clear dual display: The power meter features a dual display of power + voltage, providing a clear and intuitive view. The upper 8-grid color bar display (2 red 6 green) shows the battery power, while the lower voltmeter displays the battery voltage. The voltmeter decimal point automatically shifts for higher accuracy. *Wide range of usage: This meter is compatible with various types of battery electric equipment, including lithium battery packs, lead-acid batteries, car batteries, and electric vehicle batteries. *Automatic identification and protection: The meter head has an automatic identification function for voltage and power. It also comes with a reverse connection protection feature, stopping damage caused by reverse connection. *Accurate and reliable: The power meter has a voltage tolerance of ±1%, ensuring precise measurements. It operates at a working current of 5-15 mA and has a refresh rate of about 300mS once. The display adopts a three-digit 0.56 LED digital tube, with redblue color options. The lead length is 15cm, and the compact dimensions of 48 x 29 x 22 mm (length x width x thickness) make it easy to install. It can withstand a wide working temperature range from -10℃ to 65℃. Specifications: Part Name:Car Battery Charge Level Indicator Material:Plastic shell Size:48*29 *22 mm Color:Red or Blue(optional) Package Content: 1 * Battery Capacity Meter Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. 12-72V Battery Charge Indicator Lithium Battery Capacity Meter Digital Display Made of standard material, quality assurance and practicality. Perfect function, bring you a wonderful experience. Every customer is entitled to a 30-day refund or replacement for damage/quality issues. If you have any questions, please feel free to contact us and we will solve it for you.