It’s fundamental to carry out periodical maintenance on your car battery. Not only will this ensure correct operation, but it will also guarantee that this essential component has a longer life expectancy.

A car battery is the nerve centre that provides the energy for starting and running a car’s electrical services. Car battery voltage must always be able to supply 12 V voltage in the required amperage which, especially when starting the vehicle, is very high.

Modern batteries are sealed and don’t need to be topped up with distilled water. A car owner’s maintenance is therefore reduced when it comes to the external terminals and battery charge. For those in an easily accessible engine compartment, less maintenance is required but some are found in different, harder to reach areas of the vehicle and may entail more frequent maintenance.

WD-40® is here to help you get started and perform essential maintenance on your car battery:

How Long Do Car Batteries Last?

Standard car batteries have a life that varies between three and six years. The most influential factor for shorter car battery life is when a car is only used occasionally and for short distances. In fact, car batteries slowly discharge when they are not constantly used and recharged by the alternator.

How to de-sulphate a car battery

If not used regularly, the internal elements of the batteries can undergo sulphation, which irreparably damages their operation. So, the first rule is to regularly recharge the battery, especially if the use of the car is limited. This should be done using a good electronic car battery charger that doses the charging current according to the need of the battery itself. Some chargers are also able to act on sulphation if it is not too advanced.

Cold Weather & Car Batteries

For cars left consistently outdoors, those in the winter or adverse conditions such as cold temperatures or high humidity, can face a faster discharge of the battery. This ultimately means more regular checks on the charge will be needed – due to a lower quality of the contacts between the battery poles and the terminals of the power supply cables.

Car battery maintenance: Clean Your Car Battery terminals with WD-40®

WD-40 can help with car battery cleaning and maintenance effectively thanks to two particular products, either used together or separately.

WD-40 Specialist Fast Drying Contact Cleaner can act as a protective layer, applied on the poles and terminals of the car battery and successfully eliminate oil, deposits of grease and mud. The product quickly penetrates into the most difficult to reach areas, drying quickly without leaving residue thanks to its rapid evaporating formula. What’s more, it optimally restores electrical conductivity by eliminating low contact areas.

WD-40 Multi-Use can protect the metal from rust and corrosion, as it penetrates and lubricates any stuck parts in contact, eliminating and protecting any surface from humidity. It also displaces moisture and helps removes grease and tar stains from any non-porous surface. If the car battery connections are lubricated regularly by applying WD-40, it will also prevent dust and dirt from sticking as it protects non-porous metal surfaces.

Before carrying out any WD-40 maintenance on a car, ensure the engine is turned off and cool.

Make sure to keep on top of your car battery maintenance so your car is ready to use when you need it. For more car maintenance tips check out how to remove tar from your car or even how to remove scratches from your car. Looking for more fantastic uses of WD-40 explore our roundup of all the handy ways that WD-40 can be used and get busy with some DIY today.