depends on webpage load. if got pictures, gif images etc then around 5 mins kot.
if just those website with words i went through one hour drop 4%

Seriously not okay..

Today seems like the issue have been solved.

Just that will take a bit longer to change from E to 3G....

I discovered this on my iphone 5.. Battery life improve tremendously compare to IOS6.0.1. I am coming from iphone4 user to iphone 5. So, when i got iphone5 i will RESTORE from iphone4 to 5.

Now in IOS 6.1 i do this
1.) I do a fresh installation of IOS 6.1 & with jailbreak.
2.) This time i did not RESTORE my backup and setup a new.. Since i use icloud, all my contact remaind.. The rest start new
3.) Battery can stay until 11pm with 20% left after unplug from charges daily at 8am in the morning..

You may want to try my suggestion above.. I don't think i will upgrade to IOS 6.1.2 since i am not Ms Exchange user and i am not affected with the bugs that drain battery.

1 thing for sure, this iOS6.1.2 really display very high strength of telco signal. Now most of time full bar..

Nope. Using Celcom. Very strong & stable 3G signal compare with before update.

SAME !!  I WAS LIKE WTFF !! I discharge my phone on 2.30am and wake up 7.30 left 78% (With 3G on) Then 8.30 going out see my phone is 70% and now 9.30 is 67% with WIFI on !! WTFFF !!!

If restore phone, is that apps and photos all will gone if dint back up?

what abt 3g coverage for 6.1.2?
im using 4s on 6.1.1.
3g is horrible.
sometime got, sometime dont have 3g.

Nice, but so you till need to toggle air plane mode or its working normally now?

my usage using the previous ios, 6.1

usage: 5 hours, 1 minutes
standby: 20 hours, 14 minutes
battery left: 58%
all notification for fb twitter whatsapp instagram were on.

including 3g too.

afraid that the new update cant last dis long

im using 3g. if im not at home. whatsapp all the time. even in the office.

brightness, 15% only.

mine in 6.1 got battery issue. then restore, manually push email. install battery doc. 1st time used until phone switch off. after that, everything good until now. i think bcoz of exchange before dis.

bout 3g, got a bit problem. if come out from basement or lift, i need to turn on airplane mode then it will be ok. or the fastest way is restart.

but its not a problem for me bout 3g.

my concern is battery. can last 1 day half enuf then

mine is SG set. no difference with Msian set right?

Is this normal or drain fast  ? On 3G,location on,weather on,notification on , Siri off , push mail off.
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no problem to get that
i got 10 hours at nearly 1.5days standby with 20-25 percent left.

it all depends on how u optimize the phone and the apps.

will redo it and post.