Breit, on 10 July 2011 - 03:04 PM, said:
This is the 'Android OS Bug' on KF3 on my SGS2: ~16h since full charge with ~1:45h runtime fpr 'Android OS' (47% battery). I guess you are just lucky...
This is not the "Android-OS"-Bug, with this bug your battery would be almost flat after 17h without using the phone at all.
You used the phone for almost 2h and still have about half the battery left, which is depending on your usage, quite normal.
When the screen must display mostly white and is on high brightness you can expect a maximum of about 4h screen-usage.
I think "battery-usage-meter" is somewhat incorrect as well, and so confusing people if the really have the famous "bug" or not.
There are different types of people that claim to have the bug.
First the ones, who really have the bug, they can barely use the phone half a day without recharging (even if they don´t actually use it)
Second the ones, who get confused by the high relative percentage of the "Android OS" in their battery-usage-statistics, without actually having that much battery-use at all.
I bought my phone with KE2-firmware, which always showed very low usage of Android-OS. Especially noticeable was that Andoid-OS almost always showed less usage than Android-System.
Now I´m on KF3, which shows quite high battery-usage from Android-OS, when I´m not doing anything with the phone. Android-System on the other hand is very low. It is still quite confusing, as you expect cell-standby to use most of the power when you don´t do anything with your phone.
I also noticed some difference in actual battery-usage, but not nearly as bad as the quite high percentages from Android-OS might suggest. 10h of Standby used about 2-3% of battery on KE2, now on KF3 it is more like 4-5% (although last night it also used only about 2% in 10h).
The only difference I noticed, is that WiFi connects much faster with KF3, despite using the same policy (sleep when screen off).
With KE2 it took a few seconds until WiFi was connected when I was waking up the phone. Now with KF3 it connects almost instant to WiFi, after waking up the phone. It also seems to me, that the timeout to actually disable WiFi after locking the phone is longer.
So this might explain the slightly higher Standby-usage.
I don´t know what exactly counts to "Android OS", "Android System" and also some other packages.
Maybe Samsung moves around some processes between Android-System and Android OS, or even puts some processes in the Android-OS package, which rather should have their own.
So in the end a lot of things count up to Android-OS, resulting in a very high relative percentage, yet with a pretty normal battery-usage.
Some really have this Android OS-bug, but most like you are only confused by the (maybe inaccurate) battery-statistics.
You certainly don´t have the bug, just look how flat your battery-graph is, when the phone is actually in standby.