You've already experienced diminished car battery power in deepest winter and hottest summer. Why do extreme temps run car batteries ragged? The science is simple and fascinating, especially to the automotive tech geeks on our Duncan Acura team. They wrote this blog post to share the knowledge with you.

Winter & Batteries

At freezing temperatures, a car battery loses up to 20 percent of its power output and up to 50 percent at -22 degrees Fahrenheit. Why? Car batteries create and store electrical charges when lead and lead dioxide on interior plates interact with sulfuric acid. In addition to electrolytes made sluggish by extreme cold, the significantly higher power demands of car starters and electrical accessories in winter can suck the average car battery dry.

Summer & Batteries

Unsurprisingly, car battery electrolytes do well in summer. Almost too well. On top of possibly evaporating from high heat, the increased capacity that car batteries attain in summer inadvertently shortens their lifespan. A top-off of fluids or battery replacement might be in order.

Be sure to schedule seasonal service appointments at our Roanoke dealership to confirm the fitness of your battery, electrical components, motor oil, brakes and tires. We hope to see you soon.


Categories: Service