HTC Desire :: Battery Must Be Running On Black Magic

I think my Battery just hit a turning point in its life. For whatever reason I got exceptionally good battery life yesterday. I had it unplugged for 20 hours and it was only down to 52% Remaining by the time I was going to bed. Usually, I only get maybe 18-20 Hours with 10-20% left. My usage was if anything higher than usual too throughout the day. Listening to music/videos/texting/emailing/testing apps for a fair bit of the day.The only thing I did differently that morning was unplug it like normal (when I woke up and it was at 100)%, then plug it back in about 10 seconds later for another 5 Minutes before heading out the door. Would that have caused this peculiarity in my battery consistency.