Low-Cost Low State Car Battery Indicator

Here is very simple low-cost electronic circuit project of low state car battery indicator circuit. This electronic circuit diagram designed using few common electronic parts. This low state battery electronic project can be used to monitor car battery voltage.

Low-Cost Low State Car Battery Indicator Circuit Diagram:

The warning light LED indicates when battery indicates battery voltage falls bellow level set by 10k potentiometer, if the battery is defective or needs charging if cranking drops battery voltage bellow preset safe limit.

This circuit project is very simple so it not requires some other explanation.