Product Features[48V Battery Fuel Gauge]The 48 Volt Led Battery Meter compatible with 48V Lead-Acid Batteries in Golf Carts, Forklifts, Trucks, Scooters and More.[LED Battery Indicator Meter]10 segment LED Bar Graph display, 10% per segment??3 color LED display,different light displays different battery level visually;LED flash for low charge&high charge warning[Note]The second LED from the left flashes as a warning that the batteries voltage has been discharged to 80% of their capacity.It is strongly recommended to recharge the batteries when you get to the 3rd Yellow LED, this is a safety precaution to avoid dead batteries[Installation Notes]Make sure your “C” terminal is either connected to the Battery “+” or a Key switch, Meter will scan from full to empty then shuts off .Meter will stay full position while first is connected with batteries and indicate the actual battery level after 155 seconds.[Battery Indicator]The 48V Battery Indicator is made of high quality ABS mater