Develop Bugs

HTC Desire Battery Life

I have a question regarding my battery life. Yesterday night at 10:00 pm i played +/- 40 minutes on games like Angry Birds and used my 3G connection for about 10 minutes. My battery dropped from 100% to 61%. When i didnt use my phone (just idle mode) @ 11:46 pm i wanted to check how much battery i had left today in the morning (10:00 am) ..... it whas completely dead 0% .... i have this phone since august but if i knew the battery life whas so crap i would have picked another device.
Is there a way to improve it ??? since i read in diffrent topics people can use their desire for 2 days without a recharge.
- Not rooted
- Froyo 2.2

The HTC Desire is a smartphone running powerful mobile OS and a lot of additional gadgets like GPS, ...
So comparing battery life is impossible.
You can get a battery life of a mobile phone/week if you use it like a mobile phone: No GPS, no data, no playing games, no surfing, just occasional talking. So the battery life is normal and good, compared to mobile phones.
But normally you use it like a smartphone, thus you use it daily, play some games, ... which results in a battery life of a few hours (navigation) up to two or three days (moderate use), with an average battery life of a day (heavy use).
However, one thing for sure: Something is wrong with your phone.
This dosen't mean something is broken, rather you use an app/setting, which causes the battery drain, so you did something wrong, you're the failure, not the device!
Playing a game drains the battery fast. The display is on, probably max. brightness and the CPU and GPU is working like hell. It also gets warm, so you can feel the increased power consumption.
In sleep mode however, it should consume much less than it did for you. Maybe 2% each hour.
So to find what app you've installed or what app you keep in the background running, install a program like Android System Info and take a look at the task list, CPU load should be around 10% if you wait a few seconds and do nothing.
Take a look at the running services (android settings, applications, ...) and check if you really need all of them or if an app is active which you don't use. Then don't force close it, only idiots do this, rather open the app and deactivate the service (like automatic updating)
Next option: Test the battery life again. Maybe an app crashed and caused the increased power draw and now everything is working fine again and battery life is normal again. Then it's impossible to find a culprit with Android System Info.
Also tell us what settings you've activated: GPS/Wifi/Data/BT/...

This is happening because, some process not letting your device to sleep..!!
All you need to do is type *#*#4636#*#*
and check the battery history ,you'll get to know which process is using your battery, and remove that application.

UpSpin said:
The HTC Desire is a smartphone running powerful mobile OS and a lot of additional gadgets like GPS, ...
So comparing battery life is impossible.
You can get a battery life of a mobile phone/week if you use it like a mobile phone: No GPS, no data, no playing games, no surfing, just occasional talking. So the battery life is normal and good, compared to mobile phones.
But normally you use it like a smartphone, thus you use it daily, play some games, ... which results in a battery life of a few hours (navigation) up to two or three days (moderate use), with an average battery life of a day (heavy use).
However, one thing for sure: Something is wrong with your phone.
This dosen't mean something is broken, rather you use an app/setting, which causes the battery drain, so you did something wrong, you're the failure, not the device!
Playing a game drains the battery fast. The display is on, probably max. brightness and the CPU and GPU is working like hell. It also gets warm, so you can feel the increased power consumption.
In sleep mode however, it should consume much less than it did for you. Maybe 2% each hour.
So to find what app you've installed or what app you keep in the background running, install a program like Android System Info and take a look at the task list, CPU load should be around 10% if you wait a few seconds and do nothing.
Take a look at the running services (android settings, applications, ...) and check if you really need all of them or if an app is active which you don't use. Then don't force close it, only idiots do this, rather open the app and deactivate the service (like automatic updating)
Next option: Test the battery life again. Maybe an app crashed and caused the increased power draw and now everything is working fine again and battery life is normal again. Then it's impossible to find a culprit with Android System Info.
Also tell us what settings you've activated: GPS/Wifi/Data/BT/...
Click to expand...
Click to collapse
Brightness is already said to medium, i also turned of those life wallpapers and it still drains like ****. When i look at the battery status it says battery life is good. Maybe a application that is running i dont know, ill try to find it out. So far i have a few apps installed which i rarely use.
harish.awe said:
This is happening because, some process not letting your device to sleep..!!
All you need to do is type *#*#4636#*#*
and check the battery history ,you'll get to know which process is using your battery, and remove that application.
Click to expand...
Click to collapse
Thanks will check it out and see what it does now in idle mode.
Idle mode 01:28 pm starts now, will post results in a few hours.
Edit: It's 02:00 pm here and i already lost 4% battery, its 96% now , i did *#*#4636#*#* and checked battery status and it seems wifi is in full use 99.7%. I will turn this off but what about the 3G connection
Edit2: It's 2:24 pm here and the battery status is 92% now, i reveived +/- 4 emails in that time. I checked the status in battery indicator pro and this is what it says
Android system 37%
Mobile Stand-by 22%
Phone inactive 15%
Wi-Fi 15%
view 11%
nothing else......i am really lost now.

Is my battery damaged/broken ? .... how can i reset/callibrate the battery ? or should i contact the shop where i got this phone from for a new battery ?

don't worry, lots of people are having bad battery lifes, and angry bird drain your battery really quickly, so it is quite normal, especially on AMOLED desires.

h3llb3nd4 said:
don't worry, lots of people are having bad battery lifes, and angry bird drain your battery really quickly, so it is quite normal, especially on AMOLED desires.
Click to expand...
Click to collapse
Yeah i have AMOLED
PS: After 30 minutes without touching it the battery is still 92%.

you could install setcpu and set profiles to save battry life

Might try that.....but after 1 hour the battery is still 92%.....i guess wifi drained my stuff down all the way as i am pretty sure i turned that thing of last time.
i will do some more tests later....
Edit: After 1 and half hour the battery is still 92%, guess the stock rom isnt that bad .

MichelN said:
Edit2: It's 2:24 pm here and the battery status is 92% now, i reveived +/- 4 emails in that time. I checked the status in battery indicator pro and this is what it says
Click to expand...
Click to collapse
Its not 5:09 pm here and the battery is now 91% (idle, not touched)....guess wifi what the bad thing on my phone.

Tested the battery last night and must say i am happy with the results
10:00 pm yesterday the battery whas 60%, today i looked back @ 11:24 am and the battery just dropped with 10% (3G is on), i didn't touch the phone since then.
Stock Rom / Froyo 2.2
The battery drain came from wifi

I wrote HTC about the battery and they just sent me a brand new one So now I have 2 batteries and I think I'm happy DD

You can check your battery usage with a widget called "currentwidget" (search for it on this forum)
Usually on SBY with radio ON my phone drains from 3 to 4 Ma and 2ma in plane mode. (sounds good with a 1400mah battery)
In heavy usage, it can go anything from 150 to 500ma (ie: playing game with wifi ON)!!
For nice graphics, try to install "battery snap" too.

From HTC themself:
“To also help with Battery Life you can do these steps exactly:
1) Turn your device ON and Charge the device for 8 hours or more
2) Unplug the device and Turn the phone OFF and charge for 1 hour
3) Unplug the device Turn ON wait 2 minutes and Turn OFF and charge for another hour Your battery life should almost double, we have tested this on our devices and other agents have seen a major difference as well“
Click to expand...
Click to collapse
also found this on a swedish website (i useed google translate, to lazy to manually translate it)
A known problem with the new update of the HTC Desire to Android 2.2 Froyo is battery life. How users have experienced the change is highly variable. Several said that battery life has improved, some even talk about a major improvement. The others have had problems that the phone charges from a fully charged battery several times in one day. If you have experienced such problems, there are measures, some simple, others more complicated and time consuming. Below I list things you can try, the lightest at the top.
# 1 Look what it's drawing power. Go to Settings> About phone> Battery> Battery usage or enter * # * # 4636 # * # * on the keypad and look around a bit. Is there anything that seems abnormal, or any program that seems to be the culprit, uninstall simply the application and see if that helps. While you can uninstall applications you believe is in the background and drag the cream from the phone's battery. Some applications may slip into the "Android System" in your battery history.
# 2 Uninstall system control and task killers. Advanced Task Killer and similar programs do more harm than they help. It is unfortunately only to realize this and stop using them. Android is an OS made for having many applications driving on the background. The operating system puts himself applications you do not use the idle to conserve battery power. Different programs that measure your performance on the phone, for example, Task Panel never sets in idle and therefore system resources continuously. If you have such software installed it may be time to consider uninstalling it. More on why the task killers and Android do not go hand in hand in to read this article by Android developer Dianne Hack Born.
# 3 Clean your home screen. It can be a good idea to try if it helps to clean up your Home screens from various widgets.
# 4 Do a soft reset. Discharge the battery completely (not that the phone is turned off), turn off the phone manually, remove the battery and reinsert it, restart your phone and put it on charge. This may have some effect and provide an improved battery life. Such a restoration known as a soft reset and should be tested before you do a master reset (hard reset).
# 5 Do a "hard reset". Have you done all the methods above are still not noticed any major difference? Then it's time to do a master reset of the OS. HTC have said they for some users might went wrong during the update to Froyo causing poor battery life, and when it is easiest to do a reset to get to grips with the problem. Although Android automatically sync contacts in the "cloud" so it might be a good idea to make a backup of your contacts (Contacts> Menu> Import / Export). Note that when you do a hard reset resets the entire phone, including messages, settings, themes, installed applications, etc. These are not the contents of your SD card. There are two methods to restore your phone, do a google search on "hard reset desire," so there are many simple guides. After restoration, the idea not to install any applications you had installed before. Install the programs one at a time and not too many at once.
Click to expand...
Click to collapse

[Q] Battery issue on Wildfire S

Hi,
after running for 15 hours, one phone call for 2 min, and about 8 sms
and nothing more still remain 45% from 100%.
is that normal or it is something wrong?
wifi, gps, and bluetooth are off, and not many apps are working in background.
no livebackground or something else.
it seems to me, it is very less for such a phone, or I am wrong?
or are there some settings, which need to set to have a longer battery live?
thanks

Hi,
I saw that the dialer use 97% from the Battery! I had the whole day one call for 2 minutes.
is there someone else with such dialer usage?
thanks

andi_79 said:
Hi,
I saw that the dialer use 97% from the Battery! I had the whole day one call for 2 minutes.
is there someone else with such dialer usage?
thanks
Click to expand...
Click to collapse
I too am seeing that the dialler is using 97% of battery with only one short call made. However, I have so far and still counting got 3d 18h out of my first battery charge. (This is a new phone) This is with everything turned off mind you as I wanted to see the best time achievable with only phone functions active. Once the battery is run down I will re-charge and turn internet on etc.
It's funny that you too have "97%"??

very strange.
could someone post a normal state, how it supposed to be?
thanks

Hey i think you people don't know how the battery use calculate the battery usage in Android.
This is how it calculate
Suppose you had power on the phone then and you are using 3 apps like
1.dialer
2.wifi
3.display
then from above 3 which is the most used app the battery usage will give it more percentage.(But you will not see any 97 % if you are using 5-6 activities)The more the number of apps the less the percentage of each Activity.
The region why you are seeing 97% on battery usage about dialer is that you are using only dialer nothing else.If You use use gallary,wifi,bluetooth,calls,maps etc all together then battery usage will show you 15 to 20 % in each.
To increase battery life calibrate you battery.(let the battery discharge once and recharge it without power on and without any break)
In this forum i had seen that some are geting 4 days of battery with moderate usage and some getting only 1 day.You Had not calibrated your battery.Every Android mobile needs battery calibration atleast once in 1 month.

hi shreyasharusia
yesterday I made a reset, and I calibrate the phone.
Now I have following situation:
Dialer 41%
Cell Standby 29%
Phone Idle 28%
display 2%
android system 2%
Today I made just on call for 2 min, and I have 98%
do you think somthing is wrong with it?
thanks

could be a bug with the sense causing the battery life to be short. I usually let my phone discharge every day before I charge it for the next day. As I am usually using my phone every day the battery usually lats a day at the maximum this is usually because i am always listening to music or texting people.

now I have again this situation.
I did nothing with the phone. just one call for 2 min and 2 text, thats it.
dialer 95%
cell standby 3%
phone idle 3%
so then it is wrong to have the dialer on 95% right?

andi_79 said:
now I have again this situation.
I did nothing with the phone. just one call for 2 min and 2 text, thats it.
dialer 95%
cell standby 3%
phone idle 3%
so then it is wrong to have the dialer on 95% right?
Click to expand...
Click to collapse
that's not possible.Battery use limits to 100 % not 101%. 95+3+3 = 101.And in your first post 41+29+28+2+2 = 102.How it can be possible .
Also check is your connection is 3g or 2g.You get your battery life according to it.

.... I know, but it is fact
I was surprised too....)
I will search for a screenshot tool, and I will post it soon....
by the way, I check it with Advanced Task Manager, maybe this tool is wrong?
I use 2G only. I wouldn't be suprised if bluetooth and wlan would be on, and after a work day the battery is empty, but for one call and 2 text?
as for now, the Task Manager and a File Manager is installed, the rest is all on default.
thanks

andi_79 said:
.... I know, but it is fact
I was surprised too....)
I will search for a screenshot tool, and I will post it soon....
by the way, I check it with Advanced Task Manager, maybe this tool is wrong?
I use 2G only. I wouldn't be suprised if bluetooth and wlan would be on, and after a work day the battery is empty, but for one call and 2 text?
as for now, the Task Manager and a File Manager is installed, the rest is all on default.
thanks
Click to expand...
Click to collapse
Use Shootme for screenshot. And Take it to service center for getting low battery issue.

Hey try juice defender.It really works

Hi shreyasharusia
I need to be root to run this tool. is there another that I can use without being root?
Anyway now I have following situation.
Dialer 96%
Cell Standby 3%
Phone Idle 3%
I will try now the other tool, which do you recommend to me...
thanks by the way
but just to clear it, to have the dialer on 96% is wrong, right?
Andy

Hi, im new htc wildfire s user, barely a week. Before my battery usage showed lots of things but now theres Dialer 97%, Cell Standby 2 %, and Phone idle 2 %. Whats going on :S? Im releaved that im not the only one. Can somebody please help me im begging

My girlfriend's wildfire s' battery life is really bad. At first it was like 16 hours, but that was when it was in a really heavy use. Now it lasts only for about 12 hours with very minimal use: a couple sms' and little calling. In fact the usage doesn't even affect the battery life, as it drains at a constant rate. The values are _always_ the same: Dialer takes 49%, Android system 49%, Idle 2% It doesn't even show how much the display is using!

[SOLVED] this battery issue
Hello everyone who is experiencing really massive battery drain on wildfire S.
Symptoms:
1. you own wildfire S
2. in battery stats the "dialer" is on top (eg. 97%)
3. you have made a call recently
4. experiencing battery drain about 30-50% per hour.
Cause:
Maybe it really surprises you (or your girlfriend), but you are most probably making a phone call. The new wildfire's dialer is just a bit crappy. When you dial a number and then want to hang up, you have to do it by correct button (the red "hang-up" button). There is also a possibility to "terminate the call" by pressing the "back" button on the bottom, but in this case your call is not terminated at all, but dialer is running now in the background. The nice example is when you are calling a buddy and then you hang-up(using back button) after you realized that you are being redirected to voicemail. By doing this you are still talking to a voicemail for a period of time until the call is terminated automatically by that particular carrier.
Solution:
Use the red button to terminate the phone call. Check the logs and you will see if this is your case.
If you find this post helping to you, just say "Thanks" ---->

does anyone know the pin diagram for the battery?
I just want to know how the android takes the data from the battery.

For users experiencing massive battery drain after making a call and the infamous "Dialer" process is showing up in the battery, you need to follow the greatest battery saving top found in this thread. impreza_rs posted this solution taken from the HTC website:
"connect the phone to the charger with the phone powered on, and allow the phone to charge until the notification LED is green, indicating the device is fully charged. Disconnect the phone from the charger, and power it off. Reconnect the phone to the charger with the phone powered off, and allow the phone to charge until the notification LED is green. Disconnect the phone from the charger and power it on. Once the phone is powered completely on, power it off again and reconnect it to the charger until the notification LED is green. Disconnect the phone, power it on, and use it. You need to use this sequence only once"
I do this process every time I flash a new rom on my device and it works flawlessly. A little tedious, but you only have to do this once and you are good to go.

[Q] Battery drained over night!

I have a problem with latest version of Android Revolution HD 6.1.0.
Yesterday afternoon I fully charged my phone and used it only a little bit until I went to bed and turned the phone off.
Today when I turned my phone on again (fastboot) I was shocked: Battery was at 25%.
How can the battery drain that fast over night while turned off?
I am using the correct Radio (12.62.60.27_26.13.04.19_M), Superwiped before flashing new version of ARHD and also cleaned battery stats when it was fully charged.
Can you please help me finding out what is causing this?

I´m not getting that much battery life out of my HTC Desire HD either when running ARHD 6.1.0 ... Is there any RADIO that could help?

Weird - I have similar problem with 6.1 Revolution.
Battery seems fine all day, put it on my bedside table last night at over 80% battery...woke up this morning with 2% battery left!!
really weird.
Matt

I'm gonna download Current Widget now and enable the log option and see what is happening in the log overnight.
Post the log up then and see if someone can take a look.

Any news about this? I feel that mine is dropping rather fast aswell..
Saturday i installed 6.1, installed applications and used the phone.. At a total screen was on for 4 hours... After a total of 5 hours, the phone was down to 15% battery...
Does application installation take that much or is something not quite right? I feel that i had more batterytime with 5.2.4..
Now i can basically see the battery values dropping while using the phone.. I have current widget and sometimes when i start the screen and go to home screen it says way above 500mA, is this right?

Well i don't have any issues, while using ARHD 6.1 with the recommended Radio

chu_ said:
Well i don't have any issues, while using ARHD 6.1...
Click to expand...
Click to collapse
How have you managed to have Display use up so little battery?
Mine always has about 75% and up, at the least...

I use Autobrightness with no Mod for lower Autobrightness.
I have nothing changed.
Flashed recommended Radio.
Flashed ARHD 6.1.
Done.
As you can see some harder Battery drops, while i was playing some Games. All time WLAN on. But i used it als always and had a very nice Battery expand.

Hmm, How much time is your display turned on? as i said, this saturday after i had flashed i emptied the battery in about 5 hours with screen on 4 of those.. Feels like the screen is taking alot of battery but i guess.. I had full brightness, not auto..

I don't know exactly but i would say display was active vor 15h+.
Autosync runs every 3h.
If you freshly flashed, it will take some time to stabilize. So maybe drain it until its empty/almost empty(10%) then get a full charge. Try to reboot and watch again. If you still have problems you schould install current widget and let i generate log. where you can see how much it drain if display is off and/or phone is standby.
If I put on screen from standby and check current widget i have 3mA/5mA. So if display is off the drain is very low.

[Q] Jellytime ROM on DHD - battery drain

How much does your Jellytime ROM drain from battery? Using battery e.g. Battery monitor widget, I can see 60mA drain when phone is standby. Seems to be a lot for me. I didn't find comparsion just subjective claims - high/low drain. 60mA is with wifi turned off, bt disables, no gprs/3g data, just standby. No application seems to be running. Battery stat shows that 60 % is display (but I can confirm that display is off), 40 % cell stand by and about the same amount phone idle.

You can try BetterBatteryStats to check what might be draining your battery (if any).
Here's the link to the beta version for xda users: http://forum.xda-developers.com/showthread.php?t=1179809

xbiggyl said:
You can try BetterBatteryStats to check what might be draining your battery (if any).
Here's the link to the beta version for xda users: http://forum.xda-developers.com/showthread.php?t=1179809
Click to expand...
Click to collapse
Thanks, I will try it. So far I was using Battery Monitor apk. However, I have no reference if my battery drain level is expected for that rom or not.

I'm also having issues with battery drain on JT... really strange. It seems to have drain when in standby, and when the screen is on it goes like crazy, I can't get more than like 20-30 minutes of screen-on time. I really like this ROM, it is pretty stable and works fine, no major bugs but the battery drain is crazy. I took a couple of screenshots. It seems that process Media is keeping it "awake" and causing battery drain. In all other ROMs I used (and in stock) I have never seen any other process except SCREEN using more than couple of percent of battery. Now this media process is using almost as screen! Any clues as what it is?
Also, I noticed that it discharges quickly when screen is on, but it also charges quickly! Something wrong with battery stats? It simply can't go from 20% to 70% in 10 minutes while charging?

xhejtman said:
How much does your Jellytime ROM drain from battery? Using battery e.g. Battery monitor widget, I can see 60mA drain when phone is standby. Seems to be a lot for me. I didn't find comparsion just subjective claims - high/low drain. 60mA is with wifi turned off, bt disables, no gprs/3g data, just standby. No application seems to be running. Battery stat shows that 60 % is display (but I can confirm that display is off), 40 % cell stand by and about the same amount phone idle.
Click to expand...
Click to collapse
Its about 1% per hour about the battery drain..quite good battery with usage

KeshavJave said:
Its about 1% per hour about the battery drain..quite good battery with usage
Click to expand...
Click to collapse
Hmm, could you provide mA value (battery monitor shows it in history in 10 minutes intervals..)

I can do five hours with normal use on a full charge..

These are battery stats for my DHD. The first one is standby over night with stok HTC ROM (2.3.5), the second one is with JellyTime ROM 9.1. It takes 10times more power.

marclooman9 said:
I can do five hours with normal use on a full charge..
Click to expand...
Click to collapse
That's not much. Was it better as long as you can remember with stock HTC ROM? I could do 2-3 days with normal use with stock ROM.

xhejtman said:
That's not much. Was it better as long as you can remember with stock HTC ROM? I could do 2-3 days with normal use with stock ROM.
Click to expand...
Click to collapse
Wow 2 to 3 days? Last time I had a phone like that was back in non smart phone days...

ai6908 said:
Wow 2 to 3 days? Last time I had a phone like that was back in non smart phone days...
Click to expand...
Click to collapse
Yes, but my cost for 2-3 days is: no gsm data, no wifi (or wifi for something like 5 minutes), no widgets except htc clock & weather, almost no background apps, few phone calls, moderate number of sms. (Yes I hear you saying, you don't need 'smart' phone , I do, I use some apps but not too frequently, so avg running time from 100% to say 10% of battery was 2-3 days, mainly depending on number of sms sent

I had it charged to 100%. Then I kept it charging, went to recovery and deleted battery stats. I booted and when it displayed lock screen I unplugged. Then I played for like 10 minutes (screen on) and my battery went from 100% to 88% !!! A bit too much? I installed betterbatterystats so I hope I'll see which process keeps it awake (there's drain even when screen off)...
D.

dalanik said:
I had it charged to 100%. Then I kept it charging, went to recovery and deleted battery stats. I booted and when it displayed lock screen I unplugged. Then I played for like 10 minutes (screen on) and my battery went from 100% to 88% !!! A bit too much? I installed betterbatterystats so I hope I'll see which process keeps it awake (there's drain even when screen off)...
D.
Click to expand...
Click to collapse
perhaps try to install: http://play.google.com/store/apps/details?id=ccc71.bmw
it provides history of current consumption, that can tell whether it is a lot or not.
Btw, what do you exactly mean by "played for 10m"? What did you do?

xhejtman said:
Btw, what do you exactly mean by "played for 10m"? What did you do?
Click to expand...
Click to collapse
Thanx for the tip, I'll try installing the app you suggest. "Played" means I turned the screens on louncher a couple of times to update all widgets, went into settings, looked at the battery stats etc. Maybe lounched foursquare and titanium backup, nothing really intensive... Here are shots from batterystats. Seems to me media service is doing it...

dalanik said:
Thanx for the tip, I'll try installing the app you suggest. "Played" means I turned the screens on louncher a couple of times to update all widgets, went into settings, looked at the battery stats etc. Maybe lounched foursquare and titanium backup, nothing really intensive... Here are shots from batterystats. Seems to me media service is doing it...
Click to expand...
Click to collapse
yes media service seems to be suspicious. It says, the phone was in deep sleep only half an hour for last hour while screen on was really only for about 10 minutes. I think the problem is in remaining time. I am not really familiar with bbs logs, maybe post the log into BBS thread here on XDA for help if you cannot figure it yourself.

dalanik said:
I had it charged to 100%. Then I kept it charging, went to recovery and deleted battery stats. I booted and when it displayed lock screen I unplugged. Then I played for like 10 minutes (screen on) and my battery went from 100% to 88% !!! A bit too much? I installed betterbatterystats so I hope I'll see which process keeps it awake (there's drain even when screen off)...
D.
Click to expand...
Click to collapse
There is no need for wiping battery stats.
Once your phone recharges to 100%, battery stats reset by default.

xbiggyl said:
There is no need for wiping battery stats.
Once your phone recharges to 100%, battery stats reset by default.
Click to expand...
Click to collapse
I know, I read that somewhere, but just wanted to be sure This is really driving me nuts, I always have to be near charger

xbiggyl said:
You can try BetterBatteryStats to check what might be draining your battery (if any).
Here's the link to the beta version for xda users: http://forum.xda-developers.com/showthread.php?t=1179809
Click to expand...
Click to collapse
Ok, I figured out, what is causing high battery drain. It FM radio. After clean flash and basic setup, it consumes 10mA when standby. Which is twice more than with stock ROM, but seems to be acceptable. If I run and then exit Sprite FM radio app, phone starts to consume 60mA until reboot. After reboot, it is ok, until I run Sprite FM app again.
However, BBS does not show anything useful. Maybe because of FM HW keeps running? There is shown no SW battery eater..

I still can't figure it out Here's log of consumptuon in standby from last night, I have it set on profile manager to turn off data and set airplane mode from 1am-7am. Looks good to me, can someone confirm these are OK values?
Code:
2012/09/24|00:28:43|587mA|60%|4182mV|34.0ºC|.258|1
2012/09/24|00:29:43|529mA|60%|4182mV|34.0ºC|.100|1
2012/09/24|00:39:43|-61mA|60%|3869mV|32.0ºC|.256|2
2012/09/24|00:49:43|-11mA|59%|3960mV|27.0ºC|.0|0
2012/09/24|00:59:43|-28mA|59%|3957mV|25.0ºC|.0|0
2012/09/24|01:09:43|-18mA|59%|3960mV|23.0ºC|.0|0
2012/09/24|01:19:43|-8mA|59%|3957mV|22.0ºC|.0|0
2012/09/24|01:29:43|-10mA|58%|3940mV|22.0ºC|.0|0
2012/09/24|01:39:43|-13mA|58%|3955mV|21.0ºC|.0|0
2012/09/24|01:49:44|-7mA|58%|3955mV|21.0ºC|.0|0
2012/09/24|01:59:43|-7mA|58%|3955mV|21.0ºC|.0|0
2012/09/24|02:09:43|-7mA|58%|3955mV|21.0ºC|.0|0
2012/09/24|02:19:43|-7mA|58%|3955mV|21.0ºC|.0|0
2012/09/24|02:29:43|-7mA|57%|3945mV|21.0ºC|.0|0
2012/09/24|02:39:43|-7mA|57%|3945mV|20.0ºC|.0|0
2012/09/24|02:49:44|-7mA|57%|3945mV|20.0ºC|.0|0
2012/09/24|02:59:43|-7mA|57%|3945mV|20.0ºC|.0|0
2012/09/24|03:09:43|-7mA|57%|3945mV|20.0ºC|.0|0
2012/09/24|03:19:43|-7mA|57%|3945mV|20.0ºC|.0|0
2012/09/24|03:29:44|-7mA|56%|3935mV|20.0ºC|.0|0
2012/09/24|03:39:43|-7mA|56%|3935mV|20.0ºC|.0|0
2012/09/24|03:49:43|-7mA|56%|3935mV|20.0ºC|.0|0
2012/09/24|03:59:43|-7mA|56%|3935mV|20.0ºC|.0|0
2012/09/24|04:09:43|-7mA|56%|3935mV|20.0ºC|.0|0
2012/09/24|04:19:43|-7mA|56%|3935mV|20.0ºC|.0|0
2012/09/24|04:29:43|-7mA|55%|3925mV|20.0ºC|.0|0
2012/09/24|04:39:43|-7mA|55%|3925mV|20.0ºC|.0|0
2012/09/24|04:49:43|-7mA|55%|3925mV|20.0ºC|.0|0
2012/09/24|04:59:43|-7mA|55%|3925mV|20.0ºC|.0|0
2012/09/24|05:09:43|-10mA|55%|3925mV|20.0ºC|.0|0
2012/09/24|05:19:43|-7mA|55%|3925mV|20.0ºC|.0|0
2012/09/24|05:29:43|-13mA|55%|3925mV|20.0ºC|.0|0
2012/09/24|05:39:43|-7mA|54%|3911mV|20.0ºC|.0|0
2012/09/24|05:49:44|-7mA|54%|3911mV|20.0ºC|.0|0
2012/09/24|05:59:43|-12mA|54%|3911mV|20.0ºC|.0|0
2012/09/24|06:09:43|-7mA|54%|3911mV|20.0ºC|.0|0
2012/09/24|06:19:43|-7mA|54%|3911mV|20.0ºC|.0|0
2012/09/24|06:29:43|-7mA|53%|3891mV|20.0ºC|.18|0
2012/09/24|06:39:43|-7mA|53%|3891mV|20.0ºC|.0|0
2012/09/24|06:46:44|-210mA|53%|3740mV|21.0ºC|.0|0
2012/09/24|06:56:44|356mA|57%|4187mV|24.0ºC|.3|6
2012/09/24|07:00:44|-264mA|71%|3816mV|25.0ºC|.360|2
2012/09/24|07:10:44|-254mA|51%|3721mV|24.0ºC|.1000|0
2012/09/24|07:20:44|-32mA|36%|4174mV|24.0ºC|.736|6
2012/09/24|07:30:44|397mA|75%|3933mV|26.0ºC|.3|2
2012/09/24|07:40:44|-61mA|73%|3784mV|26.0ºC|.76|0
2012/09/24|07:50:44|-121mA|63%|3779mV|26.0ºC|.450|0
2012/09/24|08:00:44|-233mA|44%|3730mV|26.0ºC|.998|0
2012/09/24|08:10:44|-125mA|37%|3769mV|27.0ºC|.200|0
2012/09/24|08:19:36|607mA|55%|3850mV|27.0ºC|.1|1
2012/09/24|08:29:35|611mA|64%|4187mV|28.0ºC|.130|1
2012/09/24|08:39:35|426mA|69%|4189mV|28.0ºC|.0|1
2012/09/24|08:49:18|136mA|94%|4087mV|27.0ºC|.8|3
But look at the 2nd attached screenshot, at the end of the graph - how fast it charges, isn't that unusual?

Code:
2012/09/24|00:28:43|587mA|60%|4182mV|34.0ºC|.258|1
2012/09/24|00:29:43|529mA|60%|4182mV|34.0ºC|.100|1
charging at rate 500-600mA, is it external charger? I do charging on ntb and it's up to 400mA when battery is not close to 100%.
Code:
2012/09/24|00:39:43|-61mA|60%|3869mV|32.0ºC|.256|2
2012/09/24|00:49:43|-11mA|59%|3960mV|27.0ºC|.0|0
2012/09/24|00:59:43|-28mA|59%|3957mV|25.0ºC|.0|0
2012/09/24|01:09:43|-18mA|59%|3960mV|23.0ºC|.0|0
2012/09/24|01:19:43|-8mA|59%|3957mV|22.0ºC|.0|0
2012/09/24|01:29:43|-10mA|58%|3940mV|22.0ºC|.0|0
2012/09/24|01:39:43|-13mA|58%|3955mV|21.0ºC|.0|0
seems to be of slight using or runnign backgroud processes this hour?
Code:
2012/09/24|01:49:44|-7mA|58%|3955mV|21.0ºC|.0|0
2012/09/24|01:59:43|-7mA|58%|3955mV|21.0ºC|.0|0
2012/09/24|02:09:43|-7mA|58%|3955mV|21.0ºC|.0|0
this is expected consumption, with stock HTC ROM I got -3 - -5mA, but -7mA is pretty good. With R10 I got -10mA, don't know why it does sleep less than it should.
Code:
2012/09/24|06:46:44|-210mA|53%|3740mV|21.0ºC|.0|0
2012/09/24|06:56:44|356mA|57%|4187mV|24.0ºC|.3|6
2012/09/24|07:00:44|-264mA|71%|3816mV|25.0ºC|.360|2
2012/09/24|07:10:44|-254mA|51%|3721mV|24.0ºC|.1000|0
what happened here? -264mA is a lot of power consumption, do you remember what did you do? Common usage should be around -100mA.

Battery Life - Idle drain?

I was wondering if anybody else had this issue or had any suggestions.
Battery life is normally great on the tablet, except every once and a while it gets stuck awake overnight. There doesn't seem to be a 3rd party app that is holding it awake, as Android system and OS is what's using most of the battery.
As you can see in the screenshot, Doze works fine and barely any better is drained, I used it briefly, came home from work and half the battery had been drained.
Thanks for the help

Not sure if it's normal but mine does the same.
Sent from my Nexus 6 using Tapatalk

I've seen a 30ish % drain sitting overnight a couple of times over the past 2 weeks. Can't seem to find a rhyme or reason for it.

I can't imagine it being "normal" since, with Wifi set to off while sleeping that the device should drain that much.
It's odd and happens randomly, I'm on the same page as you bluestang.

It happened to me once, at night it wastes a 15% battery.
I changed in wifi advance options to not maintain WiFi always awake, only in charge.

sabisavi said:
It happened to me once, at night it wastes a 15% battery.
I changed in wifi advance options to not maintain WiFi always awake, only in charge.
Click to expand...
Click to collapse
That's the setup I have though - so I get no notifications or anything when it's not on. Yet something is still keeping the device up.

I have *exactly* the same problem with an all new device, and with nothing but a game installed on it. After a reboot, if I let the Pixel C right there for a night, then it only drains ~3/4%.
Then I play the only game I have for 5 minutes, and let the device again for a night => it now wastes a 20% battery!
No idea what's going on... "Android OS" appears first in the list of app, but this does not help me so much to find what is actually happening...
The issue still appears even after a full reset of the system (I'v tried, without success).

sylar12 said:
I have *exactly* the same problem with an all new device, and with nothing but a game installed on it. After a reboot, if I let the Pixel C right there for a night, then it only drains ~3/4%.
Then I play the only game I have for 5 minutes, and let the device again for a night => it now wastes a 20% battery!
No idea what's going on... "Android OS" appears first in the list of app, but this does not help me so much to find what is actually happening...
The issue still appears even after a full reset of the system (I'v tried, without success).
Click to expand...
Click to collapse
Exactly. If I reboot the device and let it sit, doze works fine, the second I open an app, use it and put the tablet down, something hangs and keeps it awake. Always Android OS that is keeping it awake as well...

I have this issue too. Are you guys on xceed Kernel?
Whats really interesting even better battery stats Shows no culprit.

I'm on the stock-just-reset-again last version of the system.

Freak07 said:
I have this issue too. Are you guys on xceed Kernel?
Whats really interesting even better battery stats Shows no culprit.
Click to expand...
Click to collapse
I'm on stock - not even rooted

I'm on stock MM here as well.
Also, not sure if it a coincidence or not, but I changed this and haven't seen overnight battery drops anymore. In Settings>Location I changed the Mode from High accuracy to Battery saving. Since the Pixel C doesn't have GPS device, then why use it.
Like I said, not sure if it a coincidence, but battery life has been great overnight since.

bluestang said:
I'm on stock MM here as well.
Also, not sure if it a coincidence or not, but I changed this and haven't seen overnight battery drops anymore. In Settings>Location I changed the Mode from High accuracy to Battery saving. Since the Pixel C doesn't have GPS device, then why use it.
Like I said, not sure if it a coincidence, but battery life has been great overnight since.
Click to expand...
Click to collapse
So last night, I rebooted before I went to sleep, but overnight the battery drained from 85% down to 57% in about 8 hours.
I decided to check my location settings as per your post and found it was set to high accuracy, so I changed it to "Battery Saving".
I did nothing else(no reboot) until I checked my battery now about 3 hours later, it has only dropped by a further 2%.
Looking at "Battery Monitor Widget Pro" history statistics, it is clear to see that overnight the battery was draining considerably more.
It takes readings every 10 minutes and was showing between 450 and 275 mA being used every 10 minutes overnight.
Since I changed the location settings, most of the time it is 15mA with occasional jumps up to a max of 297mA.
Although this could not be classed as conclusive proof, it does seem to have had an effect, I will keep monitoring it to see how it goes.

Yep, I change that setting on the 19th or 20th and haven't seen any major drains overnight.
I think I may have found a winner with that little tweak

So far so good for me too. I don't know if it is related to the GPS settings, but no more inconsistent major drains so far.

if location services is on it can drain a good deal

Just to add that I had exactly the same issue on stock 7.1.2, tablet was staying awake and draining. Reduced location precision and now only a 2% drain during an 8 hour sleep which is a massive improvement.