Battery malfunction after connecting it backwards?

2005 KIA SORENTO
220,000 MILES • V6 • AUTOMATIC
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HOPKINSRAY
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  • 1 POST
My battery was hooked up backwards just long enough to get a jolt of sparks. And it started right up but since then something is draining the battery, and it won't stay running for long. I took off cables while running to check the alternator and it still ran. So, I don't think it's the alternator. What do I check next?
Oct 29, 2024 at 6:00 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 take it to the auto parts store where they will test it for free. Also, this guide may help you:

https://www.2carpros.com/articles/resolving-reverse-battery-connection-in-cars-a-step-by-step-repair-guide

When the engine is running is the battery warning light on?
Oct 29, 2024 at 11:48 AM
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