Automotive Authority LLC 36V EZGO ClubCar Golf Cart Forklift ATV Battery Meter Gauge Indicator - HEX HEX 36 Volt Battery Indicator with Hour Meter Gauge Tri-color Operating Voltage: 36 Volt - Range: 36.98V Full - 31.14V Empty Never let your electric equipment run out of power again. This battery indicator is specifically designed for battery powered equipment to monitor the charge status of the batteries charge.