However, it's important to note that a car battery's voltage can fluctuate depending on the battery's state of charge.
* A fully charged battery will typically measure around 12.6 to 13.2 volts.
* A battery that's about half charged will be around 12.4 volts.
* A nearly dead battery will be around 11.8 volts or lower.
It's also worth noting that some vehicles, such as trucks and SUVs, may use higher-voltage batteries, such as 24 volts.
