Voltage monitor for car’s battery and its charging system

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Car battery and charging system monitor

This project is about making a simple electronic voltage monitor system for car’s battery and its charging system. It plugs into the car’s cigarette lighter receptacle and displays the instantaneous output voltage across the battery terminals on a 4-digit seven segment LED display. This helps you to get early warnings for possible battery and its charging system problems.

Voltage monitor for car’s battery and its charging system – [Link]

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