How to deal with a corroded battery

Your car’s battery is an important part of the vehicle’s mechanics. The battery is what helps the car start in the morning as well as providing back-up electrical power to the car.  The battery also performs other important, and perhaps less obvious, functions. For example, the battery serves as a ground for the automobile frame and for the electrical system, which maintains the electrical circuit necessary to function.

As such, it is important to ensure that the battery remains in good working order. If the battery is showing signs of corrosion, then it is important to deal with the problem.

Dealing with any corrosion and other buildup is very important. This ensures that the circuit operates efficiently, since the buildup can prevent the battery from working properly. To start dealing with a corroded battery, remove the battery from the car by unfastening the negative and positive clamps and then inspect the following items.

  • Check  the cables and clamps for corrosion and damage. If they are showing signs of wear and damage, then you should replace them.
  • Check  the case of the battery for any cracks.  Check the terminals for signs of any damage. If you find anything, you may need to replace the battery. Talk to your mechanic for further advice.
  • Ensure  that all cables are secure.  The cables should not accidentally drop onto the terminal, and should not be able to come free entirely. You can tighten these cables with a spanner.
  • Clean  the terminals to remove any corrosion deposits. Apply baking soda directly to the terminals, and then use a wet toothbrush to scrub the terminals clean. A toothbrush may be effective on lighter deposits, but for heavy corrosion, you may need to invest in a battery terminal cleaner brush. This has stronger, wire bristles. Always dry the terminals with a clean cloth when you have finished.
  • Apply  petroleum jelly or grease to the terminals. This acts a physical barrier against corrosive deposits and prevents them forming in the first place.

If you have not used the car battery for a long time, check for signs of leakage. In the event that you find signs of this problem, you may need to remove and replace the battery.

You should be able to carry out all of these tasks yourself at home, without any technical experience or knowledge. If you have any doubts, our service department is always ready to help. For greater peace of mind, you may prefer to schedule your car for a battery inspection instead.

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