Share your experience!
Hi,
I upgraded my SK17i to the latest ICS 4.1.B.0.587 and there is extream battery drain while the phone is on stand by. I tried repairing the phone and reflashing with flashtool, still the same problem persists. Please see the below screenshots. The phone has been idle (No use at all) and the time without signal is 0%. Guys please understand, what we need above all advanced features is EXCELENT BATTERY LIFE! Please elaborate what you have done to make the battery drain faster?
AND... When can we expect a fix? Please release one ASAP, my phone is almost useless as it lasts 3-4 hours now with light use!
Did you get any answer for this? I have the same issue.
I updated OS to ICS & it started giving battery problems. I went to service center & they downgraded the OS to 2.3.4. I still had the same issue, battery draining out in "Cell standby" & "Idle" mode.
Service center guys asked me to replace the battery & I still continue to have the same problem with the new battery as well. Still running on 2.3.4.
Someone plz help......It is annoying to charge the phone atleast 3 times a day... 
its bullshit sony kernel .
i tested mesa kenel and slove problem .
ihave 3G simcard in iran (rightel ) and low signal ( -79 db ) but 3 days battery work for my phone .
i have stock frimware 587 xperia and kernel mesa 2.2 . fix battery drain
Same problem here!
This is the first time I am having a BAD experience with a SONY product.
SONY,
Please fix this. Please
As CrashOverride said looks like it is the problem with 3G mode.
I tried the following and now it is not draining the battery much-
1. Goto Mobile network settings and change "Network Mode" to GSM only.
2. Goto "Network operators" and change Search mode to manual. In Search Networks select 2G network of your provider.
I know this is not a solution but, your battery will not drain that fast.
Thanks,
Sreehari
I faced same problem so dont bother here is solution
*Installation*
The installation is no different than other custom kernels.
Downloads
Also baterry quickly discharges when phone are switch off. Form 96 % discharge to 50 % after 12 hours. Is a hardware problem not software.