It also depends on other things such as brightness, 3G, wifi and more of them

bailzy11 wrote i got a iphone 5 for christmas and since i have updated my software to the 6.0.2 my battery is dying within a couple hours and i want to downgrade it to the 6.0.1 could anyone help me on this ?

There is no current way to downgrade A5+ Devices currently running iOS6 at the moment. Unfortunately you are stuck at 6.0.2! 6.1 should be out around february then there might be a way to downgrade. More likely a jailbreak will come out before a downgrade, unless at the same time.

If you feel like their is a fault with the phone, go back to a apple retailer and make an appointment with them and explain to them what has happened and if they feel like the phone is faulty they will give you a refurbished one.

There is no way to downgrade, you will have to wait until February when 6.1 comes out, when 6.1 comes out, the jailbreak will be out for it the same day according to the Dev Team.

TrickyBoss wrote There is no way to downgrade, you will have to wait until February when 6.1 comes out, when 6.1 comes out, the jailbreak will be out for it the same day according to the Dev Team.

That is exactly what I said kid.