How long does it take to charge a dead car battery?

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asked Feb 7, 2019 in Repairs/Maintenance by MariFudg (440 points)
How long does it take to charge a dead car battery?

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answered Feb 8, 2019 by rayui3 (370 points)
The time it takes for a dead car battery to fully recharge depends on how dead the car battery is.

If the battery is just a little dead then it may only take 4 hours but if the car battery is fully discharged then it can take from 8 to 12 hours to fully recharge the car battery.

The battery should be fully charged back up within 12 hours and if not then the car battery likely has a dead cell or dead cells and then battery would need to be replaced.

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