Q:

What are some tips for recharging a dead car battery?

A:

Quick Answer

Clean the battery terminals, use a trickle charger, open the battery caps and test the battery after charging are some tips for recharging a dead car battery. Some procedures may vary depending on the brand and style of battery that is in the vehicle.

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Full Answer

The battery terminals should be wiped with sand paper, emery cloth or a soft cloth with baking soda on it to remove any corrosion. It the terminals have a white powdery substance, it is sulfuric acid and must not be touched with bare hands.

Batteries typically charge better and hold the charge longer when recharged slowly by a trickle charger as opposed to a fast charge. Many batteries have cell caps, which should be removed during charging to allow gases that build up to escape.

A hydrometer should be used to check the electric current in the battery fluid after charging to verify that the battery is taking charge properly.

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