Monitor the voltage level and "state of charge" of any 12-volt battery with an LED display mounted on a comp frame that's easy to store anywhere. Includes LEDS tha indicate full. 2/3. 1/3 or 0 "state of charge." Monitor the voltage level and "state of charge" of any 12-volt battery with an LED display mounted on a comp frame that's easy to store anywhere. Includes LEDS tha indicate full. 2/3. 1/3 or 0 "state of charge."
