Started about 10 days ago but all of the sudden my battery life has just gone to hell. I've owned tons of smart phones in my day and know all the battery saving tricks. Until now I've had zero problems with the phone. Have loved my first Samsung. This morning from 7:30 to now (10:42) it's already down to 69%. I checked my emails for about 2 minutes and have sent 4 texts to my wife. That is it. No games, no videos, nothing. Brightness on auto-low and have been on wifi the whole time. I use the Smart Manager to clean up daily. Any one else have similar problems? It'll be 1 year tomorrow that I've owned the phone so I'm going into Sprint tonight to see what they can do. My wife bought the same phone the same day and hers is doing fine. She's on her phone so much more than me too. I know it has fast charge but I shouldn't need to use it before lunch.