Why Car Batteries Die Faster in Arizona Heat, and Why You Notice It in October
Things wear out faster in Arizona. Paint fades. Dashboards crack. Car batteries wear out years before they should. If you live in Mesa, Gilbert, Chandler or Queen Creek, your battery just went through one of the hardest summers in the country. Many of those batteries will start to fail this month. Here is what the heat did to your battery, why you notice it in October, and what to do about it.
- Heat, not cold, is what wears out a car battery, and the damage is permanent
- Driveway parking, long commutes and short trips all add to the wear
- A battery test this month shows where your battery stands before it leaves you stuck
What Summer Did Inside Your Battery
A car battery makes power through a chemical reaction, and heat speeds that reaction up. When it is 110 degrees outside, the temperature under your hood can pass 160 degrees. At that heat, the water inside the battery dries out faster, and the metal plates inside wear away faster. Neither kind of damage can be undone.
That is why a battery that lasts four to five years in a mild climate often lasts only two to three years in the Phoenix area. Cold weather usually gets the blame, because cold is when a weak battery finally fails. In Arizona, the heat is what made it weak in the first place.
Why the East Valley Is Hard on Batteries
A few everyday habits add to the wear. Many cars sit in the driveway in full sun all day because the garage is full. Many drivers have long commutes and then park all day in an open lot with no shade. The battery never gets a break from the heat.
Short trips are hard on a battery too. Every start takes power out of the battery. A quick drive to the store or to school is not long enough for the alternator to put that power back. Do that day after day, and the battery slowly runs down.
Why You Notice It in October
A worn battery can hide all summer. Heat helps the battery’s chemistry work, so even a weak battery can usually start the car on a 95-degree morning. Then the first cool front arrives and the nights get cooler. A cool battery gives less power. At the same time, cool engine oil is a little thicker, so the engine needs more power to turn over.
That is the slow crank many people hear in October. The cool morning did not cause the problem. It only showed the damage the summer had already done.
Warning Signs to Watch For
- The engine cranks slower than usual, especially first thing in the morning
- The headlights dim when you are stopped at a light
- The clock, radio or dashboard screens reset or flicker
- The battery light comes on
If your battery has been through two or more Arizona summers, get it tested even if it seems fine. Heat damage does not always give a warning first. A battery test puts the battery under a load like a hard start and measures what it can really deliver. The technician also checks the charging system, because sometimes the real problem is the alternator, not the battery.
We Come to You
You do not need to drive anywhere or wait in a lobby. We bring a heat-rated battery to your home or workplace in Mesa, Gilbert, Chandler, Queen Creek and across the Phoenix metro. We install it on the spot, test your charging system, and take the old battery away. Every battery we install comes with a 2-year warranty, and we dispatch 24 hours a day, every day of the year.
You cannot change the Arizona heat. You can find out where your battery stands before it fails in a parking lot or a school pickup line. Get it tested this month. One call and we come to you.
Frequently Asked Questions
How long does a car battery last in Arizona?
Often two to three years. Summer temperatures under the hood can pass 160 degrees, and that heat permanently wears a battery down. In milder climates, batteries often last four to five years.
Why did my battery die in October when it worked fine all summer?
Warm weather hides a weak battery. When the nights cool off, the battery gives less power and the engine needs more to start, so the damage from summer finally shows.
Does Dugger’s replace batteries in Mesa, Gilbert, Chandler and Queen Creek?
Yes. We bring a battery to your home or workplace anywhere in the Phoenix metro, including Mesa, Gilbert, Chandler and Queen Creek, install it on site, and dispatch 24/7.
Dugger’s Road Rescue
Phoenix metro and Tucson dispatch: (602) 274-1506.
Toll-free: 1-877-823-9696.
24/7/365. Se habla español.
