Battery overnight and was half charged?

2022 KIA FORTE
10,000 MILES
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ALYLAROSA485
  • MEMBER
  • 153 POSTS
Never leave electronics on in car everything off but tested battery next day after car sat overnight and was half charged at 12v ran it a few seconds then it was 14v while car running then 12.6 right after shut engine off. Is the normal.
Feb 2, 2025 at 8:12 AM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
It sounds like the battery is bad, I would remove it and get a new one to install, this guide will help walk you through the steps with instructions in the images below to show you how on your car.

https://www.2carpros.com/articles/how-to-replace-a-car-battery

Since this is a newer car, you may need to do a battery monitor reset, this video will show you how:

https://www.youtube.com/watch?v=ETNv2S_idIU

Check out the images (below). Please let us know what happens.
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Feb 2, 2025 at 11:07 AM
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