High battery drain with data on

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What steps will reproduce the problem?
1. Data on
2. High battery drain, about 25% in 8 hours.
3.With data off, battery drain is about 8% in 8 hours

What is the expected output? What do you see instead?
In stock 2.1 I had always data on, the same programs installed and maybe more 
and battery drain was about 8% in 8 hours

What version of MiniCM you are using? On what device (mini, pro, x8)?
My device is mini

ROM: miniCM 2.0.0. The same problem existed when I was using miniCM 6.1

What app(s) are involved in the problem?

Have you tried rebooting your device?
Yes and battery calibration many times.

What is the adb logcat output when the problem accurs (see:
http://wiki.cyanogenmod.com/index.php?title=Logcat)

Please provide any additional information below.

Original issue reported on code.google.com by hariskar on 23 May 2011 at 9:46

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yes and wifi uses much less juice.. this is strange...

Original comment by gniuli...@gmail.com on 25 May 2011 at 4:08

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You might also want to look on how much data your phone is downloading. I 
checked with my provider and it seems that X10 Mini downloaded around 400-500MB 
od data in just 2-3 days (with just normal services like google and facebook 
sync, weather and news sync, etc.). And it's not because off additional 
software. I only had a fresh install of MiniCM6 with the basic, bundled apps.
Without data transfer the battery life extends about 3-4 times in my case.

Original comment by dnadesig...@gmail.com on 26 May 2011 at 11:11

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I also have this problem. With stock 2.1 8% in a night. With this a 25%. 

Original comment by apar...@gmail.com on 6 Jun 2011 at 4:37

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I've done some testing here. What I've found out is that if I run only 2G 
(instead of 3G/2G) the battery time of my phone with this rom is practically 
doubled, I have no problem managing one day without charging anymore. I live in 
an area with quite bad 3G coverage, so I can't really say I notice any change 
of speed either.

Could it be that 2.2 and up tries to switch up to 3G more often than 2.1 and so 
is heavier on the battery if 3G coverage is bad?

Original comment by daniel.m...@gmail.com on 23 Jun 2011 at 5:28

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@daniel: Might be. I think I did read somewhere that the speed of battery drain 
is faster when the phone switches between 2G and 3G constantly. That is not 
limited to Xperia only, but to all phones with 3G (theoreticly you have a 
constant signal search, initialization and deinitialization of 3G, etc.). 
Similar things might happen when your carrier signal gets lost and found 
frequently (but that's a rather rare case ;) ).

Original comment by dnadesig...@gmail.com on 24 Jun 2011 at 9:26

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I made an easy thing.. installed shark for root and noticed many attempts to 
contact or being contacred by google servers (0 byte packets)...
maybe this is the problem, maybe the timers or maybe the internet protocol 
used... 
dunno if google uses udp for notifications but if it is so and minicm is set to 
send tcp packets instead of udp this would be a high drain cause...

Original comment by gniuli...@gmail.com on 24 Oct 2011 at 7:33

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now battery has a much better performance with data on

Original comment by gniuli...@gmail.com on 10 Nov 2011 at 9:32

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I think what  MiniCM6 not more support. End of Cycle. With MiniCM7-2.2.1 and 
kernel nAa-14 not problem. fixed

Original comment by todoesno...@gmail.com on 3 Nov 2012 at 10:59