电池电量指示器是电动汽车的电量计。该单元集成在车辆电子设备中，并显示电池电量。显示屏通常以数字或模拟方式显示电池中剩余的电量百分比。该量规应用作工具，以防止电池放电超过80％。较低的电压和较高的电流通常会导致电子组件过早失效。

       The Battery Discharge Indicator is a fuel gauge for electric vehicles. The unit is integrated within the vehicle electronics and displays the batteries charge. The display normally shows in digital or analog fashion the percentage of charge remaining in the battery.This gauge should be used as a tool in order to prevent the battery from discharging more than 80%. Lower voltage and higher current normally lead to premature electronic component failure.