Without its battery, your car is simply useless, as it powers everything from the bulb in the glove box to the engine ignition. It is therefore important to ensure the correct battery is fitted to your vehicle and that it is in a good condition.

Batteries typically last around five years, but certain conditions such as prolonged cold weather can lower their lifespan. If you find that your vehicle is struggling to start, or you frequently need to recharge the battery even when the vehicle is in constant use, it may be time to change.

Here's what you need to consider when buying a new car battery:

Group size

Your engine bay will include a tray specifically designed for the correct size battery to ensure it is securely fitted. Too big or small and it could come loose, potentially causing damage to the engine. Refer to your car's handbook for the correct group size or speak to a specialist if you are unsure.


The Amp Hours rating determines how long a battery will last without being recharged, and Cold Cranking Hours refers to the power output needed to turn the engine over in cold conditions. Diesel and petrol engines require different ratings, so consider this for the best performance.


A fresh battery will last longer, so make sure you purchase one that hasn't been sat on the shelf for a long time. Look for the battery code, which typically starts with a letter. This will note the month of manufacture – A for January, B for February and so on.


No one knows cars like the brand that built them, so we always advise using a genuine manufacturer battery to guarantee reliability and a long life.