When it comes to car batteries, most people worry about winter. But did you know that summer heat can be just as hard—if not harder—on your battery?
Why does heat damage your battery?
High temperatures under the hood can:
🔥 Increase evaporation of battery fluid
Your battery contains a mix of water and acid. Heat causes the water to evaporate faster, which can lower fluid levels, damage internal battery components, and reduce its ability to hold a charge.
🔥 Accelerate corrosion
Heat speeds up chemical reactions, including those that cause corrosion on battery terminals. Corroded connections can make it harder for your battery to deliver power where it’s needed.
🔥 Shorten battery lifespan
Overall, hot temperatures cause your battery to work harder, age faster, and potentially fail when you least expect it—like during your summer road trip.
Signs your battery might be struggling
🔋 Slow engine crank
🔋 Dim headlights or interior lights
🔋 Clicking sounds when turning the key
🔋 Battery warning light illuminated on your dash
If you notice any of these, it’s time to get your battery checked.
What can you do to protect your battery this summer?
✅ Have your battery tested regularly
Especially before long trips. At Bellingham Automotive, our technicians can quickly test your battery health to ensure you’re not left stranded.
✅ Keep your battery clean
Check for corrosion on terminals and have it cleaned if needed to maintain a strong connection.
✅ Park in the shade or a garage
Reducing under-hood temperatures helps slow fluid evaporation and protect battery life.
✅ Ensure your electrical system is in good shape
Faulty charging systems can overwork your battery. Regular inspections help catch these issues early.
Stay charged and stay safe
At Bellingham Automotive, we’re here to help you avoid unexpected breakdowns and keep your vehicle running smoothly all summer long. If it’s been a while since your last battery check, give us a call. We’ll inspect and test your battery to make sure you’re ready for every adventure ahead.
👉 Schedule your battery test today and drive with confidence.