How to stop battery terminal corrosion?

2015 TOYOTA RAV4
81,000 MILES • 4 CYL • 4WD • AUTOMATIC
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DIDI7154
  • MEMBER
  • 30 POSTS
Hello, my battery, 4 years old, keeps getting corrosion and foam around the terminals and the battery itself. I’ve charged it and added distilled water to the battery, and it is functioning fine. I’ve cleaned the terminals a few times, but the corrosion keeps coming back. What is causing the corrosion and how can I get it to stop?
May 9, 2022 at 8:25 AM
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STEVE W.
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 15,146 POSTS
Check the alternators charging voltage. If it charges at a higher voltage, it is likely the cause of the problem.

https://www.2carpros.com/articles/how-to-check-a-car-alternator
May 9, 2022 at 9:44 AM
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