6 tips to extend your battery life

1) Preserve your car battery daily

A 12-volt car battery usually lasts around five years. However, poor maintenance can cause it to wear out more quickly. To protect it:

• Avoid using accessories (headlights, radio, heating, etc.) when the engine is off so you don’t fully drain the battery.
• Drive regularly and avoid short trips, since a battery that sits inactive for long periods loses its charge faster.
• If your vehicle will be unused for an extended period, use a trickle charger to maintain adequate power and battery health.

If you’re unable to locate your car battery, check under the front hood, in the trunk, or under the seats.

2) Maintain your car battery regularly

Have a trusted mechanic clean the battery terminals and connectors to prevent corrosion. You can also do it yourself using a mixture of baking soda and water.

Good to know: Disconnecting the battery may reset certain onboard computer settings, depending on your vehicle model. Check your owner’s manual or consult a professional before handling the battery.

3) Spot the signs of a weak battery

A failing battery usually shows warning signs:

• Slower engine start than usual
• Dimmer headlights or interior lights
• Battery warning light illuminated on the dashboard

These weak battery symptoms often mean it’s time to replace it. They can also indicate a charging issue—a professional can confirm the diagnosis and test your battery.

4) Protect your battery from cold and heat

Extreme temperatures reduce battery performance. Frigid weather slows the chemical reaction needed to power your engine, while intense heat accelerates internal wear.

• In winter, park your vehicle away from the wind and, if possible, in a garage. A battery maintainer can help if you don’t drive often.
• In summer, avoid prolonged sun exposure (park in the shade) and have the battery inspected after the hot season.

5) Choose the right battery for your vehicle

When replacing your 12V battery, refer to your owner’s manual. It will indicate the correct size and model for your vehicle.

Many newer vehicles feature stop-start systems, which require specific battery types such as AGM (Absorbed Glass Mat) or EFB (Enhanced Flooded Battery). Replacing these with a standard lead-acid battery could damage your vehicle.

Also ensure that the battery you select meets the manufacturer’s recommended charging capacity. If needed, feel free to ask a CAA-Quebec Mobility Advisory Service expert for advice.

Good to know: Members receive a discount on CAA Batteries purchased at Approved Auto Repair Service locations or through Battery Service.

6) Have your car battery installed safely

Have the installation done by a trusted mechanic. The battery must be firmly secured in its tray—if it becomes loose, vibrations may damage internal battery components.

Need help? CAA-Quebec’s mobile teams can test, jump-start, or replace your car battery on-site, quickly and safely.