Why Your Car Battery May Fail Suddenly In Warmer Weather

woman stranded with dead battery
Warmer weather could zap an already struggling battery.

Temperature variations common in spring can cause your battery to fail without warning.

Driving habits during the COVID pandemic have increased the potential for battery failure. Stay-at-home orders meant more drivers were doing less commuting and traveling shorter distances to places such as the local store or shop.

As a result, vehicle batteries do not get enough time to fully recharge. Additionally, battery fatigue caused by winter driving--use of windshield wipers and other electronic accessories on short errands--shows up in spring.

Follow these battery health tips:

  • Get a vehicle battery test before traveling. Ask your service advisor to test the battery’s power retention capability and assess its overall condition.
  • Preventative maintenance is best. A vehicle’s charging system should be checked every three months, or every oil change.
  • Batteries sometimes give subtle warnings that they’re weakening. Be aware of difficulty starting the engine, low headlight intensity and sluggish power accessories.
  • Corrosion kills. Rust and crust on the terminals can diminish the effectiveness of your vehicle’s battery.
  • Turn off cabin lights and remove accessories. They may drain power overnight.