2002 Kia Sedona battery staying charged

Hi! And thank you in advance for your time! I'm having issues with my van starting in the morning. The radio will turn on and the windows work, but it won't turn over. Once I get a jump, it starts right up, and continues to. But after not running for about five hours, or overnight, its back to not starting again. I have been to two local auto parts chains that have tested my battery, starter, and alternator. All show those parts are fine. We've also replaced a loose bracket on top of the battery, which helped for a few days. But now I'm back to a jump each morning lol. Any ideas would be very helpful and much appreciated! Thank you!