Terminal voltage for a fully charged battery is ________ volts.

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Multiple Choice

Terminal voltage for a fully charged battery is ________ volts.

Explanation:
Resting terminal voltage of a fully charged 12-volt lead-acid automotive battery is about 12.6 to 12.7 volts. This is measured with the engine off and no load, reflecting the battery’s state of charge. If the voltage reads lower, around 12.0 to 12.3 volts, the battery is discharged or aging. A reading near 13.0 to 13.2 volts can occur briefly while the battery is being charged or while the alternator is actively charging, but that isn’t the resting voltage of a full charge. A value around 11.9 to 12.1 volts signals a weak or nearly discharged battery. So the best match for a fully charged, resting battery is 12.6 to 12.7 volts.

Resting terminal voltage of a fully charged 12-volt lead-acid automotive battery is about 12.6 to 12.7 volts. This is measured with the engine off and no load, reflecting the battery’s state of charge. If the voltage reads lower, around 12.0 to 12.3 volts, the battery is discharged or aging. A reading near 13.0 to 13.2 volts can occur briefly while the battery is being charged or while the alternator is actively charging, but that isn’t the resting voltage of a full charge. A value around 11.9 to 12.1 volts signals a weak or nearly discharged battery. So the best match for a fully charged, resting battery is 12.6 to 12.7 volts.

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