Develop Bugs

[Q] Poor battery life.. being reading a lot of threads but..

I have been reading of a lot of threads about how to save battery life..
here's what I done:
1. gps off
2. auto kill w/ advanced task killer
3. screen brightness at low
4. sleep screen after 15 seconds
I have got my desire for a few months and battery life has been bugging me. I understand that modern big touchscreen will drain the battery as compared to normal phones. Using a custom rooted rom atm.
I unplugged the phone at 12:00 with data on (push, auto-sync, etc), when i woke up at 7:00, I'm getting 73% of battery life. Charged it to full again and unplugged it at 8:30. My phone the phone shutdown by itself at 21:30. It's a little bit more than 13 hours of battery.
Is it me or everyone else is getting the same number? I just installed setcpu and see how it goes.. please tell me if there's any other way to preserve more battery!

I think it partly depends on which ROM you are using. I am currently using a new ROM (which I LOVE) but I've noticed that my battery life has decreased quite a bit. It can be kind of a trade off. I love the ROM so much that I'm not going to change it but it works ok for me because most of the time, I am somewhere where I can charge my phone if necessary.
Just found this thread which might help. http://forum.xda-developers.com/showthread.php?t=755903&highlight=battery+usage I'm going to try it and see if it helps.

- ROM?
- Display on time?
- Cell/WiFi on time?
- Chrome2Phone (or similar) running?
- Any battery widgets running?
- Any social networking apps/widgets running?
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- HTC Desire via XDA App -

..overall the battery lifetime is not as good as we would like it - but its a general smart phone problem - anyway I charge my device once per day...who cares?

th3 said:
- ROM?
- Display on time?
- Cell/WiFi on time?
- Chrome2Phone (or similar) running?
- Any battery widgets running?
- Any social networking apps/widgets running?
-----------------------------------
- HTC Desire via XDA App -
Click to expand...
Click to collapse
- ROM? Rooted Official Taiwan froyo rom httx://bit.ly/bSUVWV
- Display on time? sorry, how can i find this?
- Cell/WiFi on time? no wifi, cell/data apn on all the time
- Chrome2Phone (or similar) running? Android Notifier
- Any battery widgets running? None
- Any social networking apps/widgets running? 1. Friend stream (facebook and twitter) 2. Extended controls 3. HTC Notepad
Do you think it might be android notifier? it's set to send every event..
What's the average battery life with cellular data on?

My battery life is also quite shocking, also lasts for approximatly 13 hours under normal use, but if it is in standby then I'd say it lasts for 20 hours.
under normal use:
no 3/2g mode, just wifi
leedroid 2.2a
occasional games
occasional call (like 1 in 10 hours)
1~2 messages
btw you can find display on time in 設定->關於手機->電池->喚醒時間

h3llb3nd4 said:
My battery life is also quite shocking, also lasts for approximatly 13 hours under normal use, but if it is in standby then I'd say it lasts for 20 hours.
under normal use:
no 3/2g mode, just wifi
leedroid 2.2a
occasional games
occasional call (like 1 in 10 hours)
1~2 messages
btw you can find display on time in 設定->關於手機->電池->喚醒時間
Click to expand...
Click to collapse
thanks for the tip 現在安心了..
standby time around 3 hours

10w40 said:
thanks for the tip 現在安心了..
standby time around 3 hours
Click to expand...
Click to collapse
np
and your current battery status?
(sorry I type faster in Eng XD been away from TW for like 9 years now...wanna go back TT)

Do a full typical usage discharge from full to near off and see what the battery stats in that section read for Display, Cell, Phone idle and anything other (tap each one for hours and percentage).
-----------------------------------
- HTC Desire via XDA App -

10w40 said:
Do you think it might be android notifier? it's set to send every event.
Click to expand...
Click to collapse
I'm not familiar with the app but I am with FB and such and their widgets. Any app/widget polling at high frequencies like per second or per minute produces a high additional average drain which cuts runtimes, especially standby efficiency. That includes monitoring apps.
Do you have the battery widget chosen in Extended Controls, or the auto-brightness?
What's the average battery life with cellular data on?
Click to expand...
Click to collapse
I can't say because supposedly, mine is well above average. It depends critically on usage and setup, too. 24-42hours with 5-9h display on and WiFi/2G always on is quite the norm on mine. Put to sleep (standby), it doesn't drop 1% until 6-9 hours. There's many many threads every week about this now. And I have many updating widgets and auto syncs running, just nothing to do with social networking since I've completely deleted from my phone.
-----------------------------------
- HTC Desire via XDA App -

19 hours 40 minutes
Standby 35%
Phone idle 32%
Android system 17%
Voice call 5%
Display 5%
Maps 4%
Dialer 2%
I am on 3g/hsdpa

Sorta new to the forum.
Just got me a HTC Desire. Rooted running CM6.0.2
If i baby it, i get maybe 6am-2pm. Heavy use, its done before noon. Ouch
Standby is ok, i left it off the charger last night and I lost 25% over 10.5hrs.
Ive got 1 twitter app on a 5min refresh. Weather is on 1hr. Screeen is down around 15% brightness. setcpu is on 245min, 998max, scaling on demand an a screen off profile of 245.
I have no idea what more I can do to get more then half a day out of it without just not using it lol.
Im pretty new to Android and all this rooting/rom stuff so maybe Ive got something screwy. I also tried a second battery from a friend, no change.

set that friends widget to longer than 5 mins and the weather widget to every 3 or 6 hours. i bet you that will get you alot more time.

Made the switch but cant see it making that much of a change.
Any other suggestions?

[Q] Cell standby/ mobile standby battery use?

Well, I searched the forums and haven't found anything specifically for the Defy.
Coming from an HTC Wildfire, which under similar usage had a battery drain split of 30% Cell standby, 30% wifi, 30% system, I noticed that with the exact same usage, the Defy has a cell standby use of over 50% every single day (right now its at 54%). Funny thing is, it ALWAYS says on the battery manager that there is no reception for exactly 50% of the time. This is bull, because I live in central London, and I rarely get less than maximum signal displayed.
Also, I'm on WiFi almost all the time, (WiFi at home and at uni, so the only time it uses 3g/HSPA is on the way there and back, which is less than half an hour).
Has anyone else had this? Any idea what may cause it? I feel like I should be getting better battery life than what I'm getting now, it lasts under a day.

Setting your mobile to 2G only should save you a little power, also be careful with task killers as they can kill some system processes that reduce battery usage, restart you cell to get them back.
I can get 3-4days of battery life with lite use.

Tinderbox (UK) said:
Setting your mobile to 2G only should save you a little power, also be careful with task killers as they can kill some system processes that reduce battery usage, restart you cell to get them back.
I can get 3-4days of battery life with lite use.
Click to expand...
Click to collapse
Thanks for the reply.
I'm not using any task killers, so that shouldn't be a problem.
Any tips on how to switch it to 2G? I can't figure out anything in the network settings.
I'm just thinking that there may be something wrong with my radio receiver/transmitter to be using so much power in comparison to wifi and phone idle (well, compared to my last phone).

You can switch to 2G in wireless & network settings, mobile networks, select network.
But I am already using 2G and I have the same issue, maybe it is a little better than 3G, but still the "cell standby" is using most of the battery.
I saw the battery usage on Galaxy and there is only a very small usage for "cell standby" only about 10%.

i dont know what's going on with your cell,but WIFI is actually the biggest battery taker
,and the strength of signal power really do something to your WIFI chipset battery usage
what about a better WIFI signal....err i tried to change my cell into 2G or even outline
it doesn't work too much as i want
so maybe think about the WIFI problem?

Well, right now the main drainers are as follows:
Mobile standby: 44%
Go Launcher EX: 25%
Wi-Fi: 15%
Display: 15%
Phone idle: 2%
I was in my place all day today, with the phone permanently connected to Wi-Fi, so 3G was not in use. I get very strong cell reception in my place so I either have a spectacularly efficient WiFi module, or a power hungry cell radio. Or the measurements the phone is taking are wrong.
On another note, Go Launcher seems to be taking up a large percentage since its last update (yesterday or the day before), so I'm uninstalling that.

if WIFI should not be the reason and you've uninstalled the update task,i think it should be OK...but what would you do if that doesn't work?
the battery usage of standby was still more than 40 percent,yes?
why dont you download another battery monitor software....?
i'd have a longtime software error in my HTC G3.....it alwaws show me 45percent remaining battery ....

in setting/wireless & network/mobile networks/select network --- it's good to set 2G or 3G do not let automatic because it switches from 3G to 2G if the signal drops. Set 3g and see how it is.
(sorry for english)
mine on automatic in 6 hours battery dropped to 50% in standby, and now it is set to 3g all the time
mine:
Mobile standby: 40%
Display: 22%
Phone idle: 21%
System: 4%
Games, Adw Launcher EX and os: each 3-2%
when in games mine sometimes freezes and i must get out and restart the game???? i dont no why and i dont no if it is ok but ....

Thanks for the input everybody. So all of today I used the phone pretty sparingly at home, and it's been constantly connected to WiFi. Distribution is:
Mobile Standby: 56%
Wi-Fi: 19%
Display: 12%
Phone idle: 9%
Android System 2%
Under Mobile Standby, it still says "Time without a signal: 50%" even though it's definitely had perfect reception all day. I don't know what's causing it to report incorrect numbers :/
Anyway, I switched from auto to 3g auto (I tried 2G, it didn't seem to work properly, Google wouldn't even load).
I guess I'll just ignore it :/
Edit: When not on wifi, it seems to switch between 3g and HSPA quite often. Could this mean something?

iamnik said:
Edit: When not on wifi, it seems to switch between 3g and HSPA quite often. Could this mean something?
Click to expand...
Click to collapse
just like what <stapuv>says when your cell drops any one of the 3G or HSPA singnal another singnal will be switched...it'll use more power for changing network frequently.....but i dont no if this could be the reason for your situation...hmmmm

From my reading the 50% without signal is just a software bug, and can be fixed by toggling on aeroplane mode turning of teh screen for 20 seconds or so and then turning of aeroplane mod when you notice it's happening. the 50% will soon decrease. I too believe that cell standby is using way to much on my phone (always 45%+) even though im browesing the web facebook or playing games for larger peroids of time and those apps don't even show up on the battery usage display and if they do theya re only 2 percent or less.

I have a question for you guys :
I get
46% mobile standby
43% phone idle
10% voice calls
3% display
is this 43% phone idle all right? Doea it mean that 43% of the battery have beed drained by phone in idle state (so maybe not sleeping?) or it means that from all the time phone was idle (asleep) for 43%?

I guess mobile standby use is about the same on everyones phones. That's what I wanted to find out!

iamnik said:
Well, right now the main drainers are as follows:
Mobile standby: 44%
Go Launcher EX: 25%
Wi-Fi: 15%
Display: 15%
Phone idle: 2%
On another note, Go Launcher seems to be taking up a large percentage since its last update (yesterday or the day before), so I'm uninstalling that.
Click to expand...
Click to collapse
After Go Launcher EX latest update, the battery seems to drain a lot faster during idle/standby. Removed that and standby battery usage is better.

Just thought I'd add my finding on this.
My Defy regularly showed Mobile Standard over 50% - but also time without signal was always double the time that the phone had been switched on. For instance if the phone was switched on since a reboot for 1 hour then mobile standby would show the total time as 2 hours but time without a signal as 1 hour.
I had always been running on a battery saver profile (in froyo I was running the custom battery profile) & after every reboot the mobile standby bug would show.
Yesterday I changed my battery profile to the Performance mode & after several reboots the bug hasn't shown up & now the mobile standby shows the total time correctly & zero minutes without signal. The %age use has dropped to be more in line with wifi at around 32%.
I haven't noticed any difference in battery life so as mentioned in a previous post it does look like some sort of bug.

A percentage is a proportion.
Just because it's higher on the Defy, that doesn't mean the mobile standby is using more power than it does on other handsets, it could just mean everything else is using less.
There's no point comparing your Defy's battery usage to any other handset apart from another Defy.

sp8y said:
Just thought I'd add my finding on this.
My Defy regularly showed Mobile Standard over 50% - but also time without signal was always double the time that the phone had been switched on. For instance if the phone was switched on since a reboot for 1 hour then mobile standby would show the total time as 2 hours but time without a signal as 1 hour.
I had always been running on a battery saver profile (in froyo I was running the custom battery profile) & after every reboot the mobile standby bug would show.
Yesterday I changed my battery profile to the Performance mode & after several reboots the bug hasn't shown up & now the mobile standby shows the total time correctly & zero minutes without signal. The %age use has dropped to be more in line with wifi at around 32%.
I haven't noticed any difference in battery life so as mentioned in a previous post it does look like some sort of bug.
Click to expand...
Click to collapse
OK so after a few days of having no issue I rebooted the phone & the "bug" came back today so I guess it wasn't to do with the battery mode as I then put it back into custom battery mode, rebooted the bug went away.
Haven't noticed any difference over the last few days so I'm not going to worry about it.

I have found that DEFY is getting the readings wrong!
Here is how I get this:
1) fully charged the battery
2) started angry birds.
3) ~2 hour later, battery dropped to 60% and usages was as follows:
mobile standby 49%
phone idle 40%
display 4%
angry birds 7%
WTF ?!?! it should be : angry birds ~ 80%
This mettery is tottaly useless!

Personally I couldn't care less what the battery usage breakdown says. In my case 1% battery can standby 1~2 hours or use 3~5 minutes. That's pretty good for me as a charge can last 2 days.

Hi.
Could someone with this "bug" or "battery problems" do a test for me ?
A few hours after you've last charged your phone (or connected to USB) and being sure you haven't rebooted your phone recently (24 hours or so), do the following:
(My phone uses spanish language so the names might be different ...)
Dial *#*#4636#*#*, and choose battery history.
There, choose "CPU Use" and "since last charged".
What are the 4 or 5 main processes appearing in that list, and what's the CPU time they've used (you'll find that by "clicking" on the process' name) ?

CPUspy

Hi
I thought I'd report on my testing with CPUspy. I've had the Nexus for two weeks now, drained the battery completely from a full charge about 4 to 5 times.
CPUspy is stating that the phone is in deep sleep 95% of the time with 350mhz 3% of the time and all other frequencies at 0% for some reason.
I'm running stock with data plan always off, bluetooth always off and WiFi only twice per week for about 30 minutes + the phone never uses 3G, only 2G networks. I've not made too many calls (3 calls) and about 11 texts during the two week period. I've installed two 2D games, battery monitor widget and Facebook app.
Today I installed Juice Defender (free version) but I honestly think that it wont help at all since my settings are already very tight/restricted. I always make sure no apps are running in the background.
With light use (4 text messages, zero phone calls and 18 minutes using WiFi, phone only in 2G mode and playing 20 minutes of games) the battery depletes about 28%.
My results:
Android OS is using between 28% and 68% of the battery
Phone idle is around 38%
Cell Standby is around 14%.
What is the difference between phone idle and cell standby? How does CPUspy tell me that the phone is 95% in deep sleep yet it drains so heavily with light use and without any use at all about 4% per hour? Is CPUspy a good program to use with ICS?
I thought my findings would be of assistance to some of you.

Poor battery performance after update

Hello
I was so happy with this device's endurance when I first got it. I could almost stretch it to 2 days with 3 hours on screen time. But after the 4.4.3 update this is no longer the case
Here are my stats before the update:
https://drive.google.com/file/d/0BzywJDML-7JkUmQ3Y3FXZ0hPVUU/edit?usp=sharing
https://drive.google.com/file/d/0BzywJDML-7JkX1RHelRGY1hhaHM/edit?usp=sharing
As you can see in the first screenshot, average battery drain was 2.8%/h, a modest 4 hours on screen + 5.5 hours awake (listening to music) all this in 1d11h. App usage is at 41%. The second screenshot is even more awesome: 1.8%/h with 4h50m and 7 hours awake in 2d5h !!!! App usage at 34% (slightly lower).
Here's a recent screenshot after the update:
https://drive.google.com/file/d/0BzywJDML-7JkTkJwOV9mQk5ucG8/edit?usp=sharing
https://drive.google.com/file/d/0BzywJDML-7JkTlc3ODYzcUotQlE/edit?usp=sharing
The problem: the system uses too much battery. I can confirm this because it drains like 2-3% doing nothing in an hour, whereas before 1% would drain in like 2 hours (on wifi). App usage way too high because of android kernel and other system services. I barely used the phone for 1h49m (on screen) + 2 hours of listening to music. I know the problem is with the top three in app usage because when I put it in deep sleep (using DS Battery saver) over night, it only drains 3-4% in 7-8 hours.
I tried disabling auto-sync - DIDN'T HELP, battery % was going down as before.
I also have disabled the following apps since i don't use them (the same ones I had before the update, so there should be no difference): Facebook, Fitbit, Google Play Music, Google+, Hangouts, Kid Mode, OneDrive, Skype, Twitter + some more.
I haven't installed anything recently that would impact the battery performance.
https://drive.google.com/file/d/0BzywJDML-7JkcGpzSGZRVHp2MUk/edit?usp=sharing

After my update i went into system recovery and wiped the system cache.
For me the device seems to have better battery life.

Ok, I did the same. Hope this fixes it.

GT-I9195I (S4 mini +) How good is your battery life?

After reading some reports on how good the battery for the new S4 Mini is,
I am disappointed to say that I barely get through a day with Power Saving on, and the screen on auto, dimmed halfway (-3).
After one day I have 26% left.
I have greenify installed, I am rooted, I haven't installed Facebook or other battery hogs, I've used wifi/mobile about 30% of the time, the rest is standby on 2G.
My stats say:
Screen 25%
Android System 15%
Voice Calls 13%
Chrome 8%
Cell Standby 7%
...

Are you using xposed for switching 2G/3G networks
GT-I9190 cihazımdan Tapatalk kullanılarak gönderildi

No, I am not, I doubt it will make a huge difference as I am already careful to switch to 2g when not using mobile data.

http://forum.xda-developers.com/showpost.php?p=65181799&postcount=127
This was prior to rooting.
I rooted it since then, but the battery hasn't improved in my case, I consider it worse. I'm using MyAndroidTools (lots of services and receivers disabled) and Amplify (lots of wakelocks and alarms limited). I checked with BetterBatteryStats, but nothing was behaving badly afterwards. Yet, the bettery life hasn't been improved with all that tweaking, I couldn't even reproduce the time from the post above.
Yet, the tweaking might help someone else, mine waz heavily debloated before (Debloater) and I don't use resident services (messengers etc).