What Is Good Voltage for a Car Battery? | Readings That Work
A healthy 12-volt car battery reads about 12.6V at rest and about 13.7–14.7V with the engine running. Battery voltage is one of the few car checks that’s fast, cheap, and surprisingly revealing. With a $15 multimeter you can tell whether your battery is charged, whether the alternator is feeding it, and whether a slow start […]
What Is Good Voltage for a Car Battery? | Readings That Work Read More »
