Feature:48V Fuel Gauge 48V LED Battery meter is compatible with 48V lead-acid batteries in forklifts, trucks, scooters, etc.LED Battery Indicator 10-segment LED strip graph display, 10% for each segment: 3-color LED display, different lights visually show different battery level; LED flashing light for low as well as high battery warningNoteThe second LED from the left flashes to indicate that the battery voltage has been discharged to 80% of its capacity. It is highly recommended to charge the battery after reaching the third yellow LED, this is a precaution to avoid a dead batteryInstallation NotesMake sure the terminal "C" is connected to the battery "+" or key switch, the meter scans from full to empty, and then turns off. The meter will remain fully charged when the battery is connected for the first time, and will indicate the actual battery level after 155 seconds.Battery Level IndicatorThe 48V battery level indicator is made of high-quality ABS material, which is waterproof, heat-resistant, and reliable in performance. Displayed as a 10-segment LED strip chart (1 red, 2 yellow and 7 green LEDs), different lights show different battery level. Specification: Type: 48V Battery Level Indicator Size: 53x33x24(mm) Display: 10-segment LED strip graph Working Current: 10mA Working Temperature: -30c-+85c Pin Type: +, -, C Temperature: 45 grams Waterproof Grade: IP65Package Included:1x48V Battery Level IndicatorNotes:1. Due to manual measurement, please allow 1-3mm error.2. Due to the difference of different monitors, the picture may not reflect the actual color of the item. Thanks!