I just got my new iPhone 4s 2 days ago and I have made all the battery saving changes. My screen is not on full brightness or anything. The stand by time is good on the phone when it's not in use. The problem that I have is when I use Internet safari on 3G or wifi the battery goes quick every minute or so the battery percentage lowers is this normal it goes down every minute 1% just while browsing the web watching videos it seems it's goes down even faster. I thought I was suppose to get 6 hours on 3G in 8 on wifi I'm not getting nowhere near that.