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Why Utah Heat Destroys Car Batteries (And How to Prevent It)

July 2, 2025

Car Battery Failure in Utah Heat

If you've ever walked out to a dead battery on a hot summer day, you're not alone. Extreme heat is one of Utah's leading causes of battery failure, especially during July and August.

At Aposhian Garage, we see dozens of battery-related issues every summer. Here's why it happens, what to look out for, and how we can help you avoid getting stranded.

Heat Is Harder on Batteries Than Cold

Most people think winter is when batteries fail. But here in Salt Lake City, heat does as much damage, if not more. High temperatures:

  • Cause battery fluid to evaporate faster
  • Accelerate corrosion on terminals
  • Increase internal resistance, reducing power output
  • Weaken the charging system over time

This shortens the battery's life and makes the vehicle more challenging to
start, especially after it's been parked in the sun.

Signs Your Battery Is Struggling

Watch for these red flags:

  • Your engine is slow to start or cranks longer than usual
  • Dim headlights or electrical issues
  • Dashboard battery warning light is on
  • A bloated or misshapen battery case
  • You need frequent jump-starts

How to Prevent Battery Failure

Here are a few steps to keep your battery strong through the summer:

  • Park in the shade or garage when possible
  • Have your battery tested regularly
  • Keep terminals clean and corrosion-free
  • Replace batteries every 3 to 5 years, depending on use and climate

At Aposhian Garage, we offer free battery checks and full battery replacements if needed. We only use reliable, long-lasting brands, and we'll never pressure you to replace anything with life left in it.

Don't Let the Heat Leave You Stranded

Before your next road trip or commute, swing by for a quick battery inspection. It only takes a few minutes and could save you hours of stress later.

Schedule your free battery check at Aposhian Garage today.

When using Aposhian Garage, you have not only had your Subaru properly maintained, but you have also found your Subaru repair “home.”
We look forward to getting to know you and your vehicle!

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