Functions: Works on 12V, 24V, 36V, 48V, and 72V batteries. LED indicator provides warning for low and high charge levels. Specially designed to monitor battery level during charging or discharging. Displays a 10-segment bar chart using LED lights. Memory function recalls the amount of electricity used. High reliability with wide operating voltage and temperature range. Specifications: Operating voltage: 12V, 24V, 36V, 48V, 72V Operating current: nominal 20 mA Accuracy: +/- 0.5% Operating temperature: -40C to +85C Humidity: 95% RH (non-condensing) at 32C or above for 2 hours Waterproof rating: IP65 Package weight: approximately 68g Installation: compatible with golf carts and other battery-powered equipment operating on 12V, 24V, 36V, 48V, or 72V DC systems Package includes: 1 x Battery Indicator 1 x Accessory Set Connect to the appropriate voltage according to the markings on the back of the battery indicator. Incorrect voltage may cause damage or malfunction.