This sounds like a drained battery again but we need to find out how you tested it that it passed.
Here are a few guides that will help with this testing that we need to do to the alternator and battery:
https://youtu.be/dCjmRL3p4Cs
https://www.2carpros.com/articles/car-battery-load-test
https://www.2carpros.com/articles/how-to-check-a-car-alternator
I suspect the alternator has failed and when you are running it, it runs off the battery only and eventually drains the battery.
I attached the process below on how to replace the alternator as I suspect this is the issue.
Let us know what you find and we can go from there.
Thanks
Images (Click to make bigger)
SPONSORED LINKS
Saturday, August 7th, 2021 AT 6:37 PM