What Should a Battery Read When Charged? Check Normal Voltage Levels for Car Batteries
A fully charged car battery should read 12.6 volts with the engine off. This is the resting voltage. When the engine is running, the voltage rises to between 13.5 and 14.5 volts because of the alternator charging the battery. Use a reliable voltmeter for accurate measurements. When a car battery is being charged, it can … Read more