The Automobile Association is reminding motorists their vehicles will be feeling the effects of winter as flat battery callouts have topped 10,000 since June 1.­

AA Chief Mobility Officer Jonathan Sergel says older batteries are more likely to fail in colder temperatures as they need to work harder to crank the motor, and with more chilly days on the horizon, this may leave some drivers out of luck.

“A common sign of a weak battery is a distinctive clicking sound meaning the battery can’t provide sufficient voltage to start due to lack of charge or passing its serviceable life.

“You can prolong your battery health in winter by parking in a garage where possible and ensuring your battery has clean cables and terminals,” said Sergel. 

“Or if you are not using your vehicle frequently, then using a trickle charger is a very sensible thing to do.”

The AA is noticing an increase in South Island callouts with chilly conditions with Marlborough and South Canterbury regions seeing a more than 30% jump in Roadservice jobs during a week in June compared to last year. Similarly, Otago has also seen an increase.

Sergel adds there’s more to safe winter driving than just battery health - drivers need to be vigilant.

“Visibility is crucial and with foggy windows and increased hours of low-light conditions, it’s important drivers give themselves the best chance of seeing potential hazards and being seen,” he said.

10 top tips for winter driving from Sergel

• If you’re heading out early, you might be faced with a frosty windscreen. Avoid shortcuts like pouring boiling water on it which may damage your windshield, instead use lukewarm water and a scraper to clear the ice.

• Avoid rubbing foggy windscreens with your hands as this can cause smears and make vision worse. Let your vehicle’s air conditioning system take care of it.”

• In adverse conditions, drive with your headlights on so other motorists can spot you more easily and dip your headlights on foggy, snowy, or very cloudy days.

• Roads are more likely to be slippery in the cold months, reducing friction on your tyres. Take extra caution when cornering, accelerating and braking, and be aware of black ice.

• If possible, avoid driving in snow, especially if your vehicle isn’t 4WD. Ensure you reduce your speed where you need to and increase your following distances.

• You may even require snow chains after heavy snowfall. If so, ensure you know how to fit them before going on any journey.

• Regardless of how modern your car is, your engine will experience increased wear in colder temperatures. Regular servicing can ensure your engine, along with your battery, tyres, oil, wipers and more are in good shape for the winter months and less likely to break down.

• Make sure you carry some water and have some extra warm clothing or blankets in your boot. You should also have emergency supplies like a torch and first aid kit on hand too.

• Keep your phone fully charged before a journey should you need to call the AA for help.

• The key to any safe winter driving is good judgment. If you’re not confident driving in the weather conditions or in the state of the roads, delay your trip.