AskPatty Certified Female Friendly Logo
My auto mechanic replaced my alternator and then my battery had to replaced, is this normal?

Answers from the Automotive Experts

Suzanne Grego, Technician at City of Philadelphia Fleet Management Becky, The battery simply starts the vehicle. After it is started, the alternator takes over and generates energy to keep the vehicle running and recharges the battery. If the alternator is not generating any power, the vehicle runs off the battery - for a short time. The battery does not have enough stored energy to keep the vehicle going for very long. If the battery is worn down enough because of a failing alternator, it will need to be replaced. Suzanne

Contribute to this question:


blog comments powered by Disqus

Related Mazda 3 FAQs


  • if i remove the old battery to replace it with a new one will i damage the computer ... Read More
  • My new lower control arms on my Mazda 3 are in but wont take grease why? Read More
  • Our Mazda 3 losses power when we use the air conditioning and will not shift out off ... Read More
  • I had a pretty rough curb check (passenger side) a few days ago in my Mazda 3, and now ... Read More
  • I am trying to charge the battery in my 2015 Mazda 3. The clamps holding the two poles ... Read More
  • Which is the best resource to get an idea of what certain common repairs would cost in ... Read More
  • Roughly two weeks ago my tire pressure light came on. I proceeded to the gas station to ... Read More
  • Hello, my tire air pressure light just came on for the first time in 3 1/2 years and I ... Read More
  • hi had tensioner belt (big belt) replaced due to screeching noise when air, fan, and ... Read More
  • I have a Mazda 3 2004 sedan. It has 4 speeds. It has about 125,000 KM. I get all the ... Read More

Need Car Advice?

Ask The Experts!

Find Cars For Sale


Help Our Charities