Hey guys...I have posted few weeks ago already. Now its a bit different.
One month ago I had my 2year old black iPhone 4 and it lasted me a day,no huge battery drainage on iOS 6.1.3. even with icloud,3G on and so on.
Then I bough iPhone 4S and battery died in 6 hours with no usage in standby!I was so mad. I sell the iPhone again because I bought iPhone 5. Also iPhone 4S wouldnt back up the last days at all. Tried everything too.
It was brand new one,already on 6.1.3. from my operator - Vodafone czech republic.
I was curious about the battery here, and I restored from back up since of course I want to have all my contacts,photos,messages on my iPhone. I charged to 100% - and was worried that the battery would die overnight just like on my iPhone 4S. But its a bit different. In standby I can go for two days,but when using quite a lot - surfing 3g or even just edge,icloud on,wifi on, it drains quickly as well..I can do like 7-8 hours with hard usage maybe less.But on the battery usage it shows the time - and the time of standby is actually good, i drains overnight just about 4% for like 9 hours. So at least that.. But still, I have now 3g off, icloud partly too, gps too, brightness is on really low and it doesnt last a day with normal usage at all :/
I really love my iPhone but i want to actually use it!Now just have everything important of smart phone off. Hope there really will be a fix soon.