Car battery minimum voltage

The voltage of a car battery should be between 12.2 to 12.6 volts when the engine is turned off. A fully charged car battery voltage falls between 13.7 and 14.7 volts with the engine running. With the battery charge at 75%, the voltage can drop to 12.4 volts. At 25% charged, the voltage will measure around 12 volts.

But what is the minimum voltage needed to start an auto? The answer would vary for different battery models and conditions, so you should not get surprised if you get a slight deviation from the average figures. In a calm state, most batteries have 12,6-12,7 volts. At the same time, some brands provide models requiring 13-13,2 volts.

A car battery is the ultimate source of power for the electronic gadgets inside a car and for the car itself. Therefore, it is believed to be one of the most important components of any vehicle. If your car’s performance isn’t up to the mark, then a low voltage battery may be the reason for it.