2000 Buick LeSabre No crank when turning the key. Battery is at 12.23 Volts across the battery terminals. I have the battery charger hooked up to it right now and the battery is pulling in 6 Amps. If the battery was fully charged, it wouldn't be pulling any current, correct ? The battery normally has 14.7 Volts when the engine is running. Is 12.23 Volts not enough to turn the engine over ?