A fully charged 12-volt battery should indicate what voltage?

A fully charged 12-volt battery is typically recognized to have a resting voltage of about 12.6 volts or higher when measured with a voltmeter. This voltage indicates that the battery is fully charged and capable of delivering its rated performance.

In addition to voltage, the state of charge of a lead-acid battery can also be assessed through specific gravity measurements. A fully charged lead-acid battery should have a specific gravity reading of approximately 1.265 or higher, which correlates with the density of the electrolyte. This measurement provides another effective means of confirming the battery's charge level.

Thus, the correct response encompasses both the necessary voltage reading and the specific gravity measurement of the battery, verifying that both methods reflect the battery's fully charged state.