OTHER BATTERY VOLTAGE MONITOR CIRCUIT

This circuit is used to monitor the battery voltage, using a bi-color LED to indicate the state of the battery. When the LED is "GREEN" the battery voltage is above 11.9 volts. When the LED is "YELLOW", the battery voltage is between 11.9 and 11.5 volts....

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Battery tester

A very simple battery monitor can be made with a dual-color LED and a few surrounding components. The LED produces orange when the red and green LEDs are illuminated.The following circuit turns on the RED LED below 10.5vThe ORANGE LED illuminates between...

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