Other than the battery being disconnected itself, is there anything else that might have been touched during the clutch/flywheel replacement that could be causing this? I was having zero problems until the clutch replacement. The car sat for a week while I was on vacation and was very sluggish starting. Drove it around for a half hour. Sat for a few more days. Went to open the dunk a few days and battery is dead.

I jumped it and started no problems. Auto parts store said voltage is low but that makes sense since I drove it straight there. Btw battery is only 18 months old on a 100 month Honda battery.

Any ideas?

 

Oh. And my bluetooth started acting up about a month or so ago doing the "booting up" message but hadn't had trouble with battery but I was driving it everyday.

 

It's almost 100% the Blue tooth system draining the battery. It's failure is very common and battery drain is the indication other that the "booting up" message.
Our blue tooth is called a hands free link or HFL and is easy to disconnect or replace to cure the batter drain issue. Check out the you tube video. If left, the battery drain will kill a battery new or old very fast. I killed a $200 Braile lightweight battery in a month before I figured out what was going on.