Battery needs frequent jumpstart?

2019 JEEP COMPASS
72,000 MILES • 4.0L • AUTOMATIC
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STARNDAMAKING
  • MEMBER
  • 1 POST
I have to frequently jumpstart my battery after it sits either overnight or for more than several hours. When it starts, it works perfectly fine. Got the battery tested and it said it was a good battery. So I got the starter and alternator tested and those are fine as well. Not sure which is the problem now.
Oct 23, 2026 at 9:40 AM
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MECHTRIX
  • ✓Experienced Mechanic
  • 569 POSTS
Sounds to me like There must be a parasitic drain especially if its draining just sitting there not evan running
Oct 23, 2026 at 10:56 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,583 POSTS
It sounds like the battery is bad, I would have it load tested. I would remove the battery and have it tested at an auto parts store. Here is a guide to help as well.

https://2carpros.com/articles/car-battery-load-test/

and this is for the battery draw.

https://2carpros.com/articles/car-battery-dead-overnight/
Oct 23, 2026 at 3:06 PM
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MECHTRIX
  • ✓Experienced Mechanic
  • 569 POSTS
You meantiined that the batery was allready tested right ?..what type of test ? They should have load tested it at that time thats usually how it goes ..anyway if it was load tested and was deemed good along with the starter and the alternator then yeah theres a parisitic drain
Oct 23, 2026 at 5:43 PM
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