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If I'm in the office (one bar) I get about 24 hours on CM7. At home (full bar) I get ~48hrs if it's idle or ~24hrs during heavy usage (justin.tv streams, music, etc.).
yeah 24hrs is kinda farfetched on cm7
i have mine on airplane mode, display off for 8 hours and when im leaving work its at around 70-80% so i kinda just dont see how during heavy usage you get 24 hrs. thats not possible
especially without some charging going on
I can go about 24 hours now with normal use, with light use I'm able to go 24 hours and have about 20% battery left. I'm using the stock clock speeds but at lower voltages.
I am on ssx and doing everything possible and still not getting close to that
+1. Signal strength seems to hit CM7 especially hard but it seems much more efficient that blur/de-blurred roms overall.
I'll conduct an experiment this weekend and post my battery stats.
Edit #1: Do you guys still have Cell Standby, Android OS/System battery drain? When I'm in the office, Cell Standby spikes to >20%. At home, it doesn't go above 10%.
Another thing I do is to switch my Wifi Sleep Policy from Screen off > Never > Screen off. That helped, in the earlier builds, to curb the Android OS/System drain.
Edit #2: If you want, you can download alogcat and look for "wakelock" in the output. I did some reading last weekend and here's what I found.
Android uses a somewhat hacked procedure called "Wakelock" to keep applications alive. Said applications are able to wake the phone from a sleeping state. I say hacked because it appears that "Wakelock" was not merged into Linux (Android in general has this issue).
"Wakelock" is not implemented (as far as I understand) at the application level (probably System or Kernel). So, applications request a "wakelock" from the system (you'll see wakelock increment and decrement in you logcat). So if apllications are not releasing "wakelock" correctly, your system cannot enter a low power sleep state (I think coolguy was complaining about this).
If you check your battery usage (in Spare Parts), you may see a process called "Suspend." As far as I can tell, there are two types of Wakelock; Suspend and Idle. Idle seems like a low power state that keeps the apps right below the surface so they can be quickly restarted. Suspend is probably an even lower power state. It seems like Android OS (particularly Gingerbread) has issues with the Suspend state. Android OS tries to put the "Wakelock" processes in Suspend mode but but some "rogue" apps/processes may be maintaining a "Wakelock".
The reason I've been harping about Wifi Sleep Policy (no one seems to care though :'( ), is that it's one of the known "Wakelock" triggers.
I always have alogcat on my phone. Recently, "Wakelock" seems to be released correctly. Maybe Team Douche figured out a solution to this (in the recent builds) or maybe it's because I have Wifi set to "Screen off". I haven't had time to test this out yet.
Eitherway, this is what I've gathered so far; someone correct me if I've gotten something wrong.
+1. Signal strength seems to hit CM7 especially hard but it seems much more efficient that blur/de-blurred roms overall.
I'll conduct an experiment this weekend and post my battery stats.
Edit #1: Do you guys still have Cell Standby, Android OS/System battery drain? When I'm in the office, Cell Standby spikes to >20%. At home, it doesn't go above 10%.
Another thing I do is to switch my Wifi Sleep Policy from Screen off > Never > Screen off. That helped, in the earlier builds, to curb the Android OS/System drain.
Edit #2: If you want, you can download alogcat and look for "wakelock" in the output. I did some reading last weekend and here's what I found.
Android uses a somewhat hacked procedure called "Wakelock" to keep applications alive. Said applications are able to wake the phone from a sleeping state. I say hacked because it appears that "Wakelock" was not merged into Linux (Android in general has this issue).
"Wakelock" is not implemented (as far as I understand) at the application level (probably System or Kernel). So, applications request a "wakelock" from the system (you'll see wakelock increment and decrement in you logcat). So if apllications are not releasing "wakelock" correctly, your system cannot enter a low power sleep state (I think coolguy was complaining about this).
If you check your battery usage (in Spare Parts), you may see a process called "Suspend." As far as I can tell, there are two types of Wakelock; Suspend and Idle. Idle seems like a low power state that keeps the apps right below the surface so they can be quickly restarted. Suspend is probably an even lower power state. It seems like Android OS (particularly Gingerbread) has issues with the Suspend state. Android OS tries to put the "Wakelock" processes in Suspend mode but but some "rogue" apps/processes may be maintaining a "Wakelock".
The reason I've been harping about Wifi Sleep Policy (no one seems to care though :'( ), is that it's one of the known "Wakelock" triggers.
I always have alogcat on my phone. Recently, "Wakelock" seems to be released correctly. Maybe Team Douche figured out a solution to this (in the recent builds) or maybe it's because I have Wifi set to "Screen off". I haven't had time to test this out yet.
Eitherway, this is what I've gathered so far; someone correct me if I've gotten something wrong.
Oh I didn't even see your post in this thread. Do you have Android OS/System or Cell Standby drain?
yes it is doing much better this time around.
hmm how would the average battery life be on miui, close to the battery life of apex?
Do me a favor Coolguy; check the "sensor usage" in the Spare Parts battery history.
Battery History works on CM7?
The one in Spare Parts, yes.
Another thing I do is to switch my Wifi Sleep Policy from Screen off > Never > Screen off. That helped, in the earlier builds, to curb the Android OS/System drain.
This might be a stupid but where again do i go in the settings to set the wifi to screen off?
Does anyone know if you can backup your messages and calls using titanium on the blur rom and restore the messages into cyanogen? I want to put CM7 on my wife's Droid X but she has messages she cant afford to lose.
Interesting...is that something that was added back in by cyanogen in particular?...because it doesn't actually exist in Gingerbread as far as I know...
It could be because cm7 is using the froyo kernal or it was just put back in. It can also be accessed through settings>about phone>battery use. It was one of the things I missed when going from froyo to gb, I was pleasantly surprised to find it in cm7.
it shouldn't have anything to do with the kernel...because there is really no such thing as a "froyo kernel" it just happens to be the kernel that came with froyo on our phones...its no more a froyo kernel than the current kernel is a "gingerbread kernel"
yeah 24hrs is kinda farfetched on cm7
i have mine on airplane mode, display off for 8 hours and when im leaving work its at around 70-80% so i kinda just dont see how during heavy usage you get 24 hrs. thats not possible
especially without some charging going on
Nah. I get around 22 hours heavy use.
Check it.
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