Searon LED 12V 24V 36V 48V 72V Digital Battery Indicator Status Charge Indicator with Hour Meter Gauge Led Battery indicator meter with LCD hour meter Guage Works on 12V 24V 36V 48V and 72V Lead-acid Batteries and 4.5-90 volt DC power Hours reads up to 99999.9 hours with 0.1 hours resolution and are resettable. Batter indicator Displays using a 10 segment LED bar graph display from full to empty 2 Years Warranty