Features 1、It works for 12V/24V, 36V, 48V(optional) battery 2、Designed to monitor the power level of battery while charging or discharging 3、Provide instant battery status to permit effective management of the charging 4、LED flash for low charge warning 5、Display of 10 segment LED bar graph Specification Features: It works for 12V/24V, 36V, 48V(optional) battery. Designed to monitor the power level of battery while charging or discharging. Provide instant battery status to permit effective management of the charging. LED flash for low charge warning. Display of 10 segment LED bar graph. Memory option to recall quantity of electricity. High reliability, easy to install and operate. Specifications: Material: Plastic Color: Black Operating Voltage: 12V/24V, 36V, 48V (optional) Operating Current: 20mA nominal Capacity: 1 Red + 2 Yellow + 7 Green LED for indicator Accuracy: +/- 0.5% Operating Temperature: -20℃ - +85℃ Package Weight: 40-42g Package Included: 1 x Battery Indicator 1 x Set of Accessories Note: Please connect the suitable voltage, as the mark in the back side of battery indicator. Voltage too high or too low will makes the battery indicator damaged or work abnormally. Package List