Water Proof (from the front) with glass front window.

Only one LED lights at a time to save battery power.


Auto-Ranging Battery Condition Indicator - Connect to any 12, 36 or 48 volt DC battery powered equipment and the meter will automatically select the proper range.

Works on all lead acid batteries. The meter will accommodate both the standard lead acid battery discharge curve or the newer type "hot acid" batteries. Works on Exide, Trojan, Interstate and other batteries.

For use on any equipment where the battery status is important. A relay output can be selected for normally open or normally closed operation. The internal relay will provide a maximum power output of 200 milliamps. This relay will open or close when the battery power is down to about 10% of full charge.

Some mechanical aptitude is needed to make the installation. If you are not capable of finding an appropriate voltage supply, you may need to seek the help of a professional for installation.

Battery Status

    • The battery meter has 10 LEDS that will light to show the battery condition. When fully charged, only the 10th LED will light shown a green LED.
    • As the battery discharges, successively lower LEDs will light; the 9th, 8th, 7th and so on lighting only 1 LED.
    • At approximately 30% battery life, the #3 LED will light and the color is Yellow as a caution indicator. Relay will open shutting off power to auxiliary equipment if this function is used.
    • At approximately 20% battery life remaining, the #2 LED will light as a Flashing Yellow.
    • When the battery discharges to approximately ~10% remaining life, the #1 LED will start FLASHING RED with the #2 LED FLASHING Yellow alternately.

It is recommended to have the battery or batteries recharged when the #3 LED lights Yellow as a safety margin to prevent dead batteries.

CAUTION: CAUTION: This is not a full proof device and no warranty is made that your battery/batteries is/are in good condition.  


10 LEDs, #10 being fully charged and #1 being fully discharged

Auto-Ranging meter will automatically select 12, 24, 36 or 48 volts when connected to the battery pack.

Choice of two discharge curves allows meter to work on newer Exide, Trojan, Interstate and other batteries

Standard Discharge Curve #1 is 2.05 volts Full; 1.73 volts Empty per cell

Discharge Curve #2 is 2.12 volts Full; 1.92 volts Empty per cell


3 Ounces

Voltage Supply

Can be used on 12, 24, 36 or 48 volt systems

Temperature Range

-40 to 185 Fahrenheit; -40C to 85C

Power Consumption

1.08 Watts


  • OD   2.25"
  • Depth Behind front meter flange to end of connector  - 1 1/2 inches
  • Hole size - 2 1/16 "