Question about battery - Wildfire Q&A, Help & Troubleshooting

Hi there,
Recently I got a secondhand HTC wildfire buzz and the original battery had a remarkable short life. After + / - 6 hours was empty.... without touching the phone!.
I replaced the battery by a new one with slightly higher capacity (1500mah) but after approx. 7 hours this one is empty too!....without using the phone, I mean the phone was closed with the on off button, not used and checked after 7 hours
I can not imagine that this is normal and I'm wondering what can be the cause of this problem?
Specs:
Android 2.2.1
kernel 2.6.32.21
Build number 2.22.405.8
- Phone was connected to my local wifi
- Only app in background was What's app (didn't send or recieved messages)
- Killed rest of apps with "App Killer"
- Noticed a few processes with the app "OS monitor" and the process "Android-system" used between 8-20% CPU. And the process "System" about 2% CPU
I can not imagine that this is normal and I'm wondering what can be the cause of this problem?
Kind regards,

thats strange.
diy3dm2 said:
Hi there,
Recently I got a secondhand HTC wildfire buzz and the original battery had a remarkable short life. After + / - 6 hours was empty.... without touching the phone!.
I replaced the battery by a new one with slightly higher capacity (1500mah) but after approx. 7 hours this one is empty too!....without using the phone, I mean the phone was closed with the on off button, not used and checked after 7 hours
I can not imagine that this is normal and I'm wondering what can be the cause of this problem?
Specs:
Android 2.2.1
kernel 2.6.32.21
Build number 2.22.405.8
- Phone was connected to my local wifi
- Only app in background was What's app (didn't send or recieved messages)
- Killed rest of apps with "App Killer"
- Noticed a few processes with the app "OS monitor" and the process "Android-system" used between 8-20% CPU. And the process "System" about 2% CPU
I can not imagine that this is normal and I'm wondering what can be the cause of this problem?
Kind regards,
Click to expand...
Click to collapse
you dont gave proper description. well yiu are new so i consider you don't know about rooting process and your phone is not rooted.
first of all install wakelock app check from playstore. i will give you a hint wats eating your battery. well on froyo 2.2. plenty of battery monitors are avaliable. at last and the best follow some rooting guides in wildfire fourms. they are sometimes confusing for new users . well follow a method to install recovery and get rooted. install a new rom and recalibrate your battery. its a file that somtime help users .
at last if you dont want to root. simply erase everything and reinstall everything. but i suggest you to get rooted and soff. because froyo users now can not download anything from playstore. google has dropped support of froyo...

sachoosaini said:
you dont gave proper description. well yiu are new so i consider you don't know about rooting process and your phone is not rooted.
first of all install wakelock app check from playstore. i will give you a hint wats eating your battery. well on froyo 2.2. plenty of battery monitors are avaliable. at last and the best follow some rooting guides in wildfire fourms. they are sometimes confusing for new users . well follow a method to install recovery and get rooted. install a new rom and recalibrate your battery. its a file that somtime help users .
at last if you dont want to root. simply erase everything and reinstall everything. but i suggest you to get rooted and soff. because froyo users now can not download anything from playstore. google has dropped support of froyo...
Click to expand...
Click to collapse
I dont think that root is the answer here, also wiping battery stats from recovery does nothing except delete a batterystats file from the rom. no actual calibration happens. no need to rush off into s-off without a real need for it
diy3dm2 said:
Hi there,
Recently I got a secondhand HTC wildfire buzz and the original battery had a remarkable short life. After + / - 6 hours was empty.... without touching the phone!.
I replaced the battery by a new one with slightly higher capacity (1500mah) but after approx. 7 hours this one is empty too!....without using the phone, I mean the phone was closed with the on off button, not used and checked after 7 hours
I can not imagine that this is normal and I'm wondering what can be the cause of this problem?
Specs:
Android 2.2.1
kernel 2.6.32.21
Build number 2.22.405.8
- Phone was connected to my local wifi
- Only app in background was What's app (didn't send or recieved messages)
- Killed rest of apps with "App Killer"
- Noticed a few processes with the app "OS monitor" and the process "Android-system" used between 8-20% CPU. And the process "System" about 2% CPU
I can not imagine that this is normal and I'm wondering what can be the cause of this problem?
Kind regards,
Click to expand...
Click to collapse
To be honest with you friend it could be many things. ive seen many wildfires over the years that had massive battery drains just because they were old, with new batterys not really helping much. your device being on wifi is probably keeping it awake and not allowing for a deep sleep (which conserves more battery) if you go into wifi/advanced settings i think there is a option to have wifi always on during sleep. if that is ticked, then untick it and see if you gain any performance boosts. its also possible that your 3rd party battery may claim to be 1500 but it could be much lower. trusted brands are safer bets in these fields. also consider how you charge your battery, if you charge it excessively (much more that it needs, ie charged overnight while you sleep) then you could be causing permanent wear onto the battery.
as a last resort you could flash an android kernel that supports underclocking your cpu, that would increase your battery life but at the cost of performance. like the above user said try to install wakelock app and see if it pops up with anything useful but i don think it will

thanks
Thank you guys for the answers.
@sachoosaini
I did a successfull ROM flash on a HTC Prophet (QTEK S200) but that was a while ago.
@heavy_metal_man
I agree with you that it's hard to find the cause only with these info. Hard/software are very complex today. Yesterday I completely switched off Wifi but the results where the same.
I've noticed that the phone gets pretty warm while charging so perhaps that's the cause. I charging with a 5V 1.3 A usb charger.
Anyway, I'll try wakelock app to get some more info
Kind regards
.
heavy_metal_man said:
I dont think that root is the answer here, also wiping battery stats from recovery does nothing except delete a batterystats file from the rom. no actual calibration happens. no need to rush off into s-off without a real need for it
To be honest with you friend it could be many things. ive seen many wildfires over the years that had massive battery drains just because they were old, with new batterys not really helping much. your device being on wifi is probably keeping it awake and not allowing for a deep sleep (which conserves more battery) if you go into wifi/advanced settings i think there is a option to have wifi always on during sleep. if that is ticked, then untick it and see if you gain any performance boosts. its also possible that your 3rd party battery may claim to be 1500 but it could be much lower. trusted brands are safer bets in these fields. also consider how you charge your battery, if you charge it excessively (much more that it needs, ie charged overnight while you sleep) then you could be causing permanent wear onto the battery.
as a last resort you could flash an android kernel that supports underclocking your cpu, that would increase your battery life but at the cost of performance. like the above user said try to install wakelock app and see if it pops up with anything useful but i don think it will
Click to expand...
Click to collapse
diy3dm2 said:
Hi there,
Recently I got a secondhand HTC wildfire buzz and the original battery had a remarkable short life. After + / - 6 hours was empty.... without touching the phone!.
I replaced the battery by a new one with slightly higher capacity (1500mah) but after approx. 7 hours this one is empty too!....without using the phone, I mean the phone was closed with the on off button, not used and checked after 7 hours
I can not imagine that this is normal and I'm wondering what can be the cause of this problem?
Specs:
Android 2.2.1
kernel 2.6.32.21
Build number 2.22.405.8
- Phone was connected to my local wifi
- Only app in background was What's app (didn't send or recieved messages)
- Killed rest of apps with "App Killer"
- Noticed a few processes with the app "OS monitor" and the process "Android-system" used between 8-20% CPU. And the process "System" about 2% CPU
I can not imagine that this is normal and I'm wondering what can be the cause of this problem?
Kind regards,
Click to expand...
Click to collapse

Related

Power Tutor

Hi,
Anyone used PowerTutor to measure what's been using the battery?
You can find the app here:
http://www.appbrain.com/app/edu.umich.PowerTutor
Post your top battery drainers, and if you're using Eclair/Froyo please.
I tried it but deleted it after 1 day. Over a night my battery dropped from 80% to zero because of the app.
There is a battery monitor in android if no app appears it might be because their consumption is too low (I had only one that appeared it was an app to do RPD connections)
the android battery monitor doesn't seem as thorough I guess.
TMReuffurth said:
I tried it but deleted it after 1 day. Over a night my battery dropped from 80% to zero because of the app.
Click to expand...
Click to collapse
It may be possible that PowerTutor played a part in using your battery. Depending on your type of phone the PowerTutor profiling service takes between 3-15% of your phone's CPU, though we're always trying to reduce this.
Now as far as PowerTutor draining your battery from 80% to zero goes, perhaps what you should really be asking yourself is what is keeping your phone from sleeping during this time? PowerTutor won't (and indeed doesn't have permission to) do this.
exadeci said:
There is a battery monitor in android if no app appears it might be because their consumption is too low (I had only one that appeared it was an app to do RPD connections)
Click to expand...
Click to collapse
So the built in app monitor is a bit simplistic. The source code is publicly available and I encourage you to take a look android.git.kernel.org/?p=platform/packages/apps/Settings.git;a=blob_plain;f=src/com/android/settings/fuelgauge/PowerUsageSummary.java;hb=HEAD. The built in monitor is only useful to calculate very rough relative power consumption between apps. PowerTutor uses accurate models of the phone's hardware, offers absolute power figures, displays recent power history charts, and offers a log for later inspection.
As for me, I run PowerTutor all the time and never have any problem with it draining the battery. To answer the original poster's question my greatest consumers come from a crossword app, google's music player (in a future release it will be possible to see what apps are using audio with some tinkering), solitaire, and then the browser. However most of the energy for these apps (except the music player) comes from the OLED screen.
I have been working on a website where some of the data collected through PowerTutor may be made available. This would display some basic power profile information for popular apps and perhaps some other usage characteristics. I've been a little busy recently but hopefully we can get this out sometime in the next couple weeks.
I havent used PowerTutor for some time, so I may be missing recent improvements. But from my experience I agree that it is a a serious batery drainer...
I don't use my mobile phone when at work. And normally it drains from full to 98~97% from 7H30, when I leave home and unplug it from charger, to 13H00 when I leave my work place to lunch. With BateryTutor the battery drained to +/- 80% in the same period. Tested it 2 or 3 times, always the same result.
I am giving it a try. It looks very informative and functional. I don't think it is to be constantly used, instead it would be more useful to have it running for a couple of days and see what is draining battery and tweak your phone accordingly.
Something that got my attention is that there is a android process called "download manager" that constantly drains 400mW. What is this? Can I somehow stop it? I am not downloading anything.
Thread moved to themes/apps section
Is anybody aware of any similar programs like Powertutor which gives similar detailed information?
I suspect Powertutor doesn't give correct information for the Samsung Galaxy S (it was developped for HTC G1/G2 and Google Nexus One).
According to Powertutor these 2 processes eat a lot of juice:
50% => Android Download Manager which translates to android.media process (from Powertutor logfile) <= I suspect this is incorrectly reported by Powertutor
10 - 15% => Samsung Power Monitor widget which translates to com.sec.android.app.controlpanel (from Powertutor logfile)
A program like Powertutor is clearly not meant to be running all the time but is very usefull in identifying processes which take above average power.
More information on Powertutor's working and energy-models can be found here:
http://www.google.com/url?sa=t&sour...sg=AFQjCNGwU_2TaxWE8TcwqHQLbfmU9A67AA&cad=rja
I strongly suspect incorrect readings for our Galaxy S...
Again I raise my question: anybody aware of a similar tool?
Please, info about an application like PowerTutor for our Galaxy S!!
Latest version of Powertutor (1.3.1) works a lot better now with my Galaxy S. The fact I upgraded to Froyo may be of influence.
It least Powertutor doesn't report 1 process (Android download manager) to consume all energy anymore!
looking also
upp3rd0g said:
More information on Powertutor's working and energy-models can be found here:
http://www.google.com/url?sa=t&sour...sg=AFQjCNGwU_2TaxWE8TcwqHQLbfmU9A67AA&cad=rja
I strongly suspect incorrect readings for our Galaxy S...
Again I raise my question: anybody aware of a similar tool?
Click to expand...
Click to collapse
The closest thing I have come across is BetterBatteryStats http://forum.xda-developers.com/showthread.php?t=1179809. It lets you know about wakelock drains and gives fairly accurate reading of processes and alarms using battery since the device is unplugged. I still want another Power tutor -like app though.

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] New HTC Desire HD from Vodafone Australia

Hey guys,
I just got my HTC Desire HD a few days ago. Been using the phone without modding or anything (I have no clue about them, just found out that we could do this yesterday) and found that my phone is pretty laggy occasionally and the battery life... is horrible!
The battery life has been fluctuating every day. Today, the phone lasted me for 5 hours only. Did not use the camera or watch videos. I checked the Battery Use window and I found that my Android OS used about 46% and my Display used 34%.
The software number is 1.32.178.5 with Froyo (2.2). I'm wondering if any mod could provide me with better performance and battery life as my OS currently is a battery guzzler.
I'm new to HTC and I've been reading up on flashing, modding etc. Not understanding too much though. Help would be greatly appreciated.
Thanks
The first thing you need to do is root your DHD. Without that, there is nothing much you can do.
Hey thanks for replying.
Yeah, I got that part. I wanted to know if replacing the mod will improve the performance and reduce the load on my battery.
Wondering if anyone has experience this change by replacing the mod rather than just having cosmetic and utility difference.
Lathros said:
Hey thanks for replying.
Yeah, I got that part. I wanted to know if replacing the mod will improve the performance and reduce the load on my battery.
Wondering if anyone has experience this change by replacing the mod rather than just having cosmetic and utility difference.
Click to expand...
Click to collapse
I am using ARHD on my DHD (as you can see from my signature) and i have huge improvement of overall performance and battery. It is just awesome using DHD with this ROM loaded on.
Most people root their device for better performance/stability and freedom than to color and give their DHD a cosmetic look!
PS! Read my signature....esp the last line
Lathros said:
Hey guys,
The battery life has been fluctuating every day. Today, the phone lasted me for 5 hours only. Did not use the camera or watch videos. I checked the Battery Use window and I found that my Android OS used about 46% and my Display used 34%.
The software number is 1.32.178.5 with Froyo (2.2). I'm wondering if any mod could provide me with better performance and battery life as my OS currently is a battery guzzler.
Click to expand...
Click to collapse
I have the same software version (AU Vodafone). I found it took a few charge/discharge cycles for the phone to get better acquainted with its battery. The first few days I was concerned about battery discharge time, however now I'm not. I even purchased a second charger for work, however I rarely seem to use it.
I've rooted my DHD using Visionary r14 however I'm still running the original ROM. I recommend that you try the following before changing your phones software:
Install SetCPU from the Market (requires root). This will underclock your phone (saving power) when not in use.
Settings -> Display -> Brightness -> Tick Automatic Brightness.
Disable GPS/Bluetooth if you don't use it, or enable it only when you need it.
Leave wifi/wireless off. You've got 2GB of 3G/HSDPA data allowance (slower than wifi but seems to use less power). I don't even use 25% of my data allowance.
Settings -> Applications -> Development -> Tick USB Debugging. This will reduce the lag (and stop Android OS using 46% of your battery).
I listen to music for close to 90 minutes per day, and sync two email accounts, RSS, Twitter, weather, etc. My battery will last at least a day and a half - by then it's at about 20% charge.
After being unplugged for 16.5 hours, my battery usage is as follows:
Cell standby 34%
Display 30%
Phone idle 28%
Android System 3%
Mediaserver 3%
Android OS 2%
And I've had the screen on for more than usual today.
-Mike-
Hey guys, thanks a lot for replying.
I've rooted my DHD using Visionary r14 however I'm still running the original ROM. I recommend that you try the following before changing your phones software:
Install SetCPU from the Market (requires root). This will underclock your phone (saving power) when not in use.
Click to expand...
Click to collapse
I just tried this last night, had a really busy week. And WOW! I usually do not charge my phone overnight as I've heard that overcharging causes the battery to eventually become weak. I lose about 20-22% overnight where my Android OS takes up most of my battery. After I rooted and installed SetCPU, I lost only 8% over 6 hours, where the OS used only 5% and phone idle used 24%. A HUGE change, cheers for that Mike.
I am using ARHD on my DHD (as you can see from my signature) and i have huge improvement of overall performance and battery. It is just awesome using DHD with this ROM loaded on.
Click to expand...
Click to collapse
I'll try that ROM in sometime, look at how my phone is gonna perform after SetCPU. I've heard that using a different ROM will screw up my warranty so I'll hold on to the current ROM for a while. Thanks again.
Help needed with ozzy Radio Roms - Like which one??
Can anyone help me I really want to use CoreDroid
http://forum.xda-developers.com/showthread.php?t=858418
After rooting, Eng-off, S-off, unlocking the sim and using Clockworkmod to install CoreDroid. It booted fine and all looked good very impressed.
Except I now had no signal at all (bluetooth and WIFI are OK).
Tried multiple Radio roms found on XDA website all without any result.
After changing the ROM using the adb to push radio.img, restarting in fastboot
and finally flashing the rom. I would rebuild CordDriod from fresh each time just to be sure.
Can any body let me know if there is a more up to date ROM that is working with the VodaFone Australia Desire HD.
Many thanks in advance for any effort required.
Im going to try again, maybe i missed something.

[Q] More info on the Android OS bug. Suspend process , wakelocks and battery life.

Hello all,
I first posted this in Q&A on the home forum. There doesn't seem to be any interest so I thought I'd post it here again. Below is what I wrote on the original post.
"If you’ve been supremely annoyed with the AOS bug like I have , here’s some interesting information I’ve found (Did a search and it appears no one else has found this yet). It’s a paper written (in 2010)by Rafael J. Wysocki which touches deep into the subject. What I hope is that it will help some developers understand this bug and ultimately integrate a work around / fix as soon as possible. Hopefully this will help some users understand what is going on with their phones as well.
I have and Epic 4g Touch and all the ROMS I’ve tried have this bug but according to the article, looks like a kernel problem. My suspend / events/0 processes runs for a long time, eating up cpu and I don’t have it as bad as some people but thought it's worth mentioning.
Basically what I get from the paper is that…
1. The suspend (and by association the events/0 process) process is Google’s implementation of a power management system, an add on to the Linux Kernel
2. That the wakelock / suspend feature is , to make a long story short , not working the way it’s supposed to.
3. “Poorly” written apps, or apps that are written without the inner workings of how suspend /wakelocks work, will trigger this bug. This can be ANYTHING.
4. Supposedly, kernel version 2.6.37 will fix this. The Epic 4g Touch kernels are all .35 as far as I know which explains the fact that so many Epic 4g Touch owners complain about this.
Would love for the smarter than me people to give their take on this?
Since this is my first post, it won't let me post a link. Do a google search for Rafael Wysocki suspend_blockers.pdf and it should be the first link that shows up."
Hopefully there's more interest here!
http://systemsens.cens.ucla.edu/~cs219/lectures/Suspend-Blockers.pdf
sent from the near past
Danial, thanks for the reply. Not sure if it was intentional but that's not the document I was referring to. However it looks like useful info and simplifies some of the explanations and even uses the the document written by Wysocki as a reference so thanks for that.
Bump! for battery life lovers!!!
how do I check to see if this bug is causing battery drain on my phone. thanks!
Sent from my SPH-D710 using Tapatalk
pcmanager said:
how do I check to see if this bug is causing battery drain on my phone. thanks!
Sent from my SPH-D710 using Tapatalk
Click to expand...
Click to collapse
If you go to Settings, About Phone, Battery usage, you'll see "Android OS" take an unusal amount of battery time. Mine varies from 25-80%, some others I've read, consistently get 80%. You should be running on battery for a while before you check this since if you've only been on battery for a few hours, that stats may be misleading.
A more precise way is also to download the free Battery monitor Widget, and in the statistics section, you'll see the processes "suspend" and "events/0" take hours of usage when it shouldn't. You also may see *wakelock* take up hours of time.
Some dwho have it bad, download watchdog, and monitor on the fly, which processes go over a certain amount of % usage. If your batter drains quickly, suggest this route to confirm its suspend and events/0.
thanks for all those great infos. my android os is usually under 10 percent after several hours of use so I don't think that is buggin me. Could you explain exactly what a wakelock is? I know I could use the search button but the info you provide here in this thread might help a lot of other people trying to resolve battery drainage issues. Thanks!
Sent from my SPH-D710 using Tapatalk
saejin2000 said:
Hello all,
Since this is my first post, it won't let me post a link. Do a google search for Rafael Wysocki suspend_blockers.pdf and it should be the first link that shows up."
Click to expand...
Click to collapse
I'm assuming you were talking about this site, which was the second search result:
http://lwn.net/images/pdf/suspend_blockers.pdf
As a side note, my Android OS is at 7% of my battery usage right now.
faceyourfaces said:
I'm assuming you were talking about this site, which was the second search result:
http://lwn.net/images/pdf/suspend_blockers.pdf
As a side note, my Android OS is at 7% of my battery usage right now.
Click to expand...
Click to collapse
May I ask,
1. How long your phone is on battery for?
2. Kernel Version?
3. ROM?
Would love to be @ 7% for Android OS!
1. How long on battery 1:15
2. Kernel Version EL29
3. ROM StrongSteve blue, Odex
4. Android OS 3%
I will let you know what the OS % is at the end of the day before the battery dies ......
Would love to be @ 7% for Android OS![/QUOTE]
Sent from my SPH-D710 using Tapatalk
pcmanager said:
thanks for all those great infos. my android os is usually under 10 percent after several hours of use so I don't think that is buggin me. Could you explain exactly what a wakelock is? I know I could use the search button but the info you provide here in this thread might help a lot of other people trying to resolve battery drainage issues. Thanks!
Sent from my SPH-D710 using Tapatalk
Click to expand...
Click to collapse
A wakelock is, as I understand it, a process in the Android kernel that temporarily tells the Android device to hold off sleeping (stop the suspend process).
This allows for a process , application or device (such as your wi fi antenna) to turn back on and do what it needs to do. The suspend process is suppose to tell the phone to go back to sleep but with this bug, either or can get stuck and therefore use up more cpu that it's supposed to.
pcmanager said:
1. How long on battery 1:15
2. Kernel Version EL29
3. ROM StrongSteve blue, Odex
4. Android OS 3%
I will let you know what the OS % is at the end of the day before the battery dies ......
Would love to be @ 7% for Android OS!
Click to expand...
Click to collapse
Sent from my SPH-D710 using Tapatalk[/QUOTE]
Interesting, I'm on EL29, have used Strong Steve's ROM but it still persists for me. Next thing I will try is to install Steve's ROM only, no additional apps.
I've gotten 2 days , 9 hours battery life (on light use, about 3 hours screen time, lowest setting) my last round but I've Juice Defender configured it to heck and undervolted as well. I think if I figure out what app may be contributing to this I just may get 3 days, may be 4 days battery life.
thanks for the info!
EOD report...
1. How long on battery 1:15
2. Kernel Version EL29
3. ROM StrongSteve blue, Odex
4. Android OS 3%
1. How long on battery 9:24
2. Kernel Version EL29
3. ROM StrongSteve blue, Odex
4. Android OS 21%
5. Display on 2:09
6. Percent battery left 29%
Not a great day for battery stats but i did change my modem from ek02 to el29 last night trying to solve a gmail keeps sending issue i am having. Last time i was on el29 it seemed to consume more juice so i switched back to eko2.
So i have system updates always running. When I go to try and update PRL and firmware etc, it gives me an error. I assume I need to re-flash a stock ROM, then update? I wonder if my problem is this: My used my phone for a few weeks, then ported over a new number. Under phone info, it still shows the original number. It uses the original number for a hotspot confirmation. But my phone clearly has a new number. Is this need for the phone to update causing the battery drain?
gk325 said:
So i have system updates always running. When I go to try and update PRL and firmware etc, it gives me an error. I assume I need to re-flash a stock ROM, then update? I wonder if my problem is this: My used my phone for a few weeks, then ported over a new number. Under phone info, it still shows the original number. It uses the original number for a hotspot confirmation. But my phone clearly has a new number. Is this need for the phone to update causing the battery drain?
Click to expand...
Click to collapse
PRL's (and profiles) should update despite having a custom ROM. Firmware won't however.
I think it's unlikely that the fact you can't update is causing a battery drain. To be sure, you need to find out which process the phone uses to do updates and see if they are taking up alot of CPU (OS monitor or battery monitor widget will help you with CPU usage.)
I think you simply have the OS bug like the rest of us.
pcmanager said:
EOD report...
1. How long on battery 1:15
2. Kernel Version EL29
3. ROM StrongSteve blue, Odex
4. Android OS 3%
1. How long on battery 9:24
2. Kernel Version EL29
3. ROM StrongSteve blue, Odex
4. Android OS 21%
5. Display on 2:09
6. Percent battery left 29%
Not a great day for battery stats but i did change my modem from ek02 to el29 last night trying to solve a gmail keeps sending issue i am having. Last time i was on el29 it seemed to consume more juice so i switched back to eko2.
Click to expand...
Click to collapse
Yeah your battery life is dismal but the Android OS percentage is not nearly what I would expect it to be if the bug was causing this.
I would at least try a free battery saving app if you haven't already. You could probably get a few extra hours out of it.
Might want to turn 4g off also and see how much more mattery life you get.

Poor battery life

Dears,
I bought a G3 phone just a month ago and, apparently, the battery was lasting almost a whole day in the first two weeks, but, after that, the battery became to last less than half day. Of course I've installed some applications since then, but it's very strange because the Android doesn't report any abnormal processing load of any application, so I'm presuming the OS is causing the high battery consumption. After I bought the phone, I upgraded the OS to Lollipop almost forthwith. I'd like to know if it's a known issue of G3 with L version and there is something I can do to increase the battery life.
I've installed some applications that utilize the location services, but Android doesn't claim those applications are draining the battery. According to what Android reports, the screen and the OS are main things that are consuming more battery ( 24% for screen and 16% for OS )
Thanks in advance
nasordev said:
Dears,
I bought a G3 phone just a month ago and, apparently, the battery was lasting almost a whole day in the first two weeks, but, after that, the battery became to last less than half day. Of course I've installed some applications since then, but it's very strange because the Android doesn't report any abnormal processing load of any application, so I'm presuming the OS is causing the high battery consumption. After I bought the phone, I upgraded the OS to Lollipop almost forthwith. I'd like to know if it's a known issue of G3 with L version and there is something I can do to increase the battery life.
I've installed some applications that utilize the location services, but Android doesn't claim those applications are draining the battery. According to what Android reports, the screen and the OS are main things that are consuming more battery ( 24% for screen and 16% for OS )
Thanks in advance
Click to expand...
Click to collapse
You should root your LG G3, then install xposed, greenify amplify and powernap. Those apps will control your wakelocks and alarms. This will also improve your battery life.
May I also suggest to reduce screen DPI. Reduced mine from 640 to 534, added about 45-60 mins of SOT
Are you talking screen on time? Or idle battery drain. Because these are two very different things. Quite often it is the way you are using your phone and the applications installed that will cause your battery life to become worse.
Of course you have the obvious things such as disabling data when you aren't using it and wifi and so on. Through my experience I have found amplify to be of little use if you are generally cautious about the apps you install. Facebooks apps are terrible. Any instant messager will be causing some sort of drain. The problem definitely arrises from these things and while you can install many other apps to limit these things. I often find it is best to address the problem at the source. Perform a factory reset. Then begin installing your apps one by one and seeing when the hit comes. Thats my advice. Then find an alternative to the problematic app. That or BBS to find what is causing wakelocks. Remember, if you are gaming the processor is going to eat battery.
To follow up on orcam he is in the perfect rite direction as for reducing the dpi its a placebo effect you can read up on it on many threads and sot is in most case 7 to 12 min longer reduce britghness get rid of carrier iq is a big battery hog debloat the system apps like facebook and all the other bloat that lg uses is bad on battery life
The best way to get better battery:
1. Root
2. Debloat - delete useless app's and files from root directory!
3. 3845*#855# (855 its international model, put your model: 851, 852, etc) and search for Thermal Daemon Mitigation OFF, then click and enable it, and search Fast Dormancy and turn off, and in High Temperature Property OFF enable it too and turn off your phone for atleast 40 seconds, turn on and wait 1 minute with screen on to update those things.
4. Xposed with Greenify
5. TricksterMOD and set the CPU freq. to min. 300Mhz and max to 1.540MHz (if you use the phone normally, and dont play games).
6. in TricksterMOD set the GPU to 330Mhz for powersave.
7. Developer Options active the "Force GPU to 2D graphics"
8. Use brightness according with your needs, not only keep it in 100% (i know in 100% looks beautyful but screen is a battery beast).
This is what i have in mine and i can guarantee if you use moderate it can go up to 3 day's, mine got 5 hours and 20 minuts in On Screen Time so...

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