Get 20% off this month when you try our services!
Get 20% off this month when you try our services!
Your vehicle owner’s handbook provides important information about the location of your car battery and the basic checks you can safely carry out.
In most vehicles, the battery is located under the bonnet. However, some manufacturers position it under the rear passenger seat or in the boot — this is more common in larger, executive models. Certain vehicles, such as those from Mercedes, Porsche, Rolls-Royce, and Mitsubishi, may even be fitted with two batteries, particularly in models with larger engines.
Most modern car batteries are maintenance-free and include a built-in performance indicator. This means there are generally no internal checks you need to carry out yourself, aside from ensuring that the terminal connections are secure and free from debris.
Keep the terminals clean to prevent the build-up of dirt and grease.
Applying a light coating of petroleum jelly to the terminals can help protect against corrosion.
Take extra care when tightening the terminal connections. Overtightening can damage the battery casing or lead posts, potentially leading to premature battery failure.
Always avoid crossing or incorrectly connecting the positive and negative terminals, as this can cause electric shock, permanent damage to the battery, and in extreme cases, an explosion.
Copyright © 2026 Truck Tyres National - All Rights Reserved.