Windows Phone 8.1 Battery Drain

Has anyone else noticed a significant decrease in battery life with Windows Phone 8.1?

Battery life has been good to excellent on my Lumia 920 since I bought it. On a normal day of usage, I'll have about 20% battery by midnight. Since updating to 8.1 on Monday that hasn't been the case; I'm down to 15% after about 5 to 7 hours. For instance right now, I've closed down every application turned off most apps via battery saver. My old Battery app (by Arthur Semenov) shows that I have 20% battery, 56 minutes of usage left.

Battery saver shows that Facebook, Instagram, and my email use power, but my messaging app uses 3-5 times more power than any other app. I'm wondering if this has to do with the new Swipe keyboard.

I'm loving this update, but has anyone else had battery problems?