92 Chevy Lumina Dieing Battery

Check for battery drain, everything turned off. Check for any lites that might be left on, best time to check is in the dark, interior--in the trunk--under the hood. If the problem is on a fused circuit, you can pull fuses one at a time, when you pull fuse on faulty circuit the excess drain goes away. You can check amp draw probably around.O30.

You could take battery cable loose, use a testlite between cable and battery post. If lite comes and stays on, there is a drain.

Do you have a voltmeter on your dash, engine running, what does it show?