LED Battery Meter Battery Level Monitor 12V 24V 36V 48V 60V 72V Waterproof Lithium Acid Monitor Gauge for Golf Cart RV Boat Car

12V 24V 36V 48V 60V 72V Battery Meter, Designed to Monitor the Power Level of Battery While Charging or Discharging. Compatible with Ternary Lithium battery, Polymer lithium-ion battery, Lithium ion battery, Storage battery, Water battery and MoreSpecifications:Operating Voltage: 12V - 72VOperating Current: 20mALED Display: 3 kinds of colors for the LED bars(1 red, 2 yellow and 7 green)Material: ABSWaterproof Level: IP65Functional:1. All LED lights will be light up for 1 second when powered on.2. After the device is connected to the battery, the meter will automatically identify the current battery level.3. When the device is powered on, the battery voltage is displayed, and the battery indicator is refreshed every 10 seconds.Easy To Install:You can drill an accurate panel cut-out size 2.091.261.18 inch proper place of equipment for installation; 2 power connection diagrams to be chosen: direct & key switch.Must connect the "C" pin with positive(+) pin to keep the indicator getting an normal real-time battery power left.NOTE:1.Make sure to apply the proper voltage on the indicator. Failure to apply the proper voltage will cause the indicator not to work normally.2.Make sure that the C terminal is connected to the battery positive terminal or the C terminal is connected to the battery positive terminal through the key switch. If the C terminal is not wired correctly, the device will not work properly. (LED indicator will not light up)3. If the voltage of the DIP switch is set lower than the actual voltage of the battery, the device will not be damaged, and it can work normally if it is reset to the correct voltage value.