Cold, damp weather and short trips are hard on a car battery. A few habits keep it healthier through an Irish winter, and tell you when it is time for a new one.
Seven habits that help a battery last the winter
- Take a longer drive now and then. A battery recharges while you drive, and lots of short trips never give it enough time.
- Switch off what you do not need. Lights, heated seats, the rear screen and the radio all draw power, especially before the engine is running.
- Keep the terminals clean. A white or green crust can stop the power getting through. If you are not sure, ask a mechanic.
- Do not leave the car idle for weeks. If it will sit for a long time, start it and drive it, or ask about a battery maintainer.
- Park under cover if you can. A garage or a covered space helps on frosty nights.
- Mind the extras. Dash cams, trackers and alarms can drain a battery that is already weak.
- Have it tested before the cold. A quick test shows how much life is left.
How old is too old for a car battery?
Most batteries last several years, but age is only a guide. Cars with a start-stop system can wear a battery faster, and so can a car that mostly does short runs.
When to replace the battery
Slow starting, dim lights or a battery warning light all mean it is time to have it looked at. Do not wait for the first hard frost to find out.
When you call about a car battery replacement, have the make, model and year ready, so the right battery can be matched to the car and fitted where it is parked.