12v high/low battery monitor


Posted on Jul 17, 2012

R1 controls the trip-point of the circuit. adjust it accordingly. to reverse the logic (have the led light up when the battery has at least X amount of power,) connect the led to ground through R4.


12v high/low battery monitor
Click here to download the full size of the above Circuit.

all resistors are 5 or 10 percent tolerance, 1/4-watt




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