Yeah, mine holds 24 hours worth. I had multiple folders it was saving to for some reason, that I did not see until I hooked it up to my computer.
I was deleting everything in the one folder once I got home, if I didn't need it, so I was surprised that it was full. Somehow I managed to create and save to multiple folders. My guess is that I forgot to shut it off a few times and hit the record button somehow.
Until today, my only concern was the battery. I know it is some form of user error, probably the gremlins that sneak in when I'm asleep. :/
I'm just glad I found out before I had some sort of encounter where I really needed it for evidence to protect me.
Just like your firearm, make sure your other equipment is in working order to avoid surprises.
I messed up. Maybe my admission will help others avoid a problem when it counts.