Database Users

no battery life with the 2.2 update

My battery made it to 1:00 o'clock today with the new 2.2 update that i did last night. It normally lasts till 11 - 12 at night. Whats up with that?
FYI - All the same apps,widgets, and settings
**UPDATE**
Doing a factory reset fixed the problem for me!!

opie2l said:
My battery made it to 1:00 o'clock today with the new 2.2 update that i did last night. It normally lasts till 11 - 12 at night. Whats up with that?
Click to expand...
Click to collapse
Strange, I'm sitting at 75% after 5 hours off the charger and using it for moderate text usage (probably less than 80 messages today). Usually around this time it's sitting closer to 60%.

i have the .3 update and went from about 24 hours to about 8-10 hours. Battery life cut in half. My friend who has .3 is having same issue too. So much for increasing battery life.

formulabird said:
i have the .3 update and went from about 24 hours to about 8-10 hours. Battery life cut in half. My friend who has .3 is having same issue too. So much for increasing battery life.
Click to expand...
Click to collapse
Wow. Have you searched the forum to see if anyone else has the same issue? If not I hope it's not an isolated incident. Then again if it's isolated maybe you can get support on it better...? Good luck finding a solution.

You gave us zero information to help you. So thus, you will not get any help.
There are about a billion threads on here about battery life and how to tweak it. When you flashed 2.2 you will need to do those steps again.

yeah some people are reporting bad battery life after update. most people i know are on .3. don't know if .6 fixes this hopefully we get update soon

I did a test last night. Dropped 13% between 1130 and 3:30am With wifi on (got up cause of baby), then only 10% between 330 and 8am with wifi off. So a drop of only 23% overnight.
That's with one exchange account, one gmail account (both syncing as items arrive), htc news set to not sync, but newsdesk and feedr both syncing. Facebook for htc set to sync contacts only.
Sent from my PC36100 using Tapatalk

I had the same issue on all 2.2 ROMs I tried.. i am now going through the apps one at a time to see which one is the issue.
right now I am 7 hours in and sitting at 75% very light use ( read about 7 emails, 5 new articles and little to no Web surfing). installed 10s so far other than the standard with Fresh latest ROM that is.

I've actually had very good battery life, I'm running the .3 release. Battery life for me has been very comparable to running Baked Snack 9.6, with its underclocking/undervolting power save features. Moderate use of the phone for 8 hours (wifi, browsing websites here and there, one navigation route, texting, bunch of short phone calls, playing some games), my battery was around 65 or so, same as I had before for similar usage.
I did do a full wipe though, and haven't calibrated my battery since updating.

Aridon said:
You gave us zero information to help you. So thus, you will not get any help.
There are about a billion threads on here about battery life and how to tweak it. When you flashed 2.2 you will need to do those steps again.
Click to expand...
Click to collapse
I am just stating a observation on my part. And i know all the little tricks of how to get better battery life. But like i said, before the update i was getting a full day of battery and now after the update i am getting half. With the same settings and the usage on my part.

opie2l said:
I am just stating a observation on my part. And i know all the little tricks of how to get better battery life. But like i said, before the update i was getting a full day of battery and now after the update i am getting half. With the same settings and the usage on my part.
Click to expand...
Click to collapse
maybe because some of the htc sync stuff that you might have disabled before re-enabled.
Check that.
-mark

diomark said:
maybe because some of the htc sync stuff that you might have disabled before re-enabled.
Check that.
-mark
Click to expand...
Click to collapse
Yeah, i already went through all the settings last night.

Aridon said:
You gave us zero information to help you. So thus, you will not get any help.
There are about a billion threads on here about battery life and how to tweak it. When you flashed 2.2 you will need to do those steps again.
Click to expand...
Click to collapse
This is not directed at you personally, but at the words you chose to use:
I am sick and tired of "tweaks and settings and cutting things off." I used them and got over 30 hours on both DamageControl and Fresh.
I paid Sprint/HTC good money for this awesome phone (and am committed to pay them a whole lot more over the course of the next 22 months).
While I can understand the 4G thing, why should I have to cut off Data-WiFi-Bluetooth, power down the CPU, not use it a lot in order to get... in short, drive it like a Toyota Prius when then phone is billed as a Maserati? Why should I have to try out this app and that app(Overclock widget, SetCPU, System Manager, Task Killer, Autostarts etc which all use battery too) in order to get the phone to do what it should have done on June 4, 2010?
Most of the battery draining apps and widgets come pre-loaded with sense (i.e. the Favorite widget, Friendstream etc). Why should I have to resort to rooting my phone or not using it in order to get the thing to last all day?
I'm keeping my EVO cause I love the device, but maybe Sprint/HTC need a little of the medicine that Jobs/Apple is getting in the form of lawsuits due to over-promising/under-delivering.
/off_my_soap_box

You should send that rant to HTC and Sprint... I think we all stand behind you on that one.

there are lots of reasons a battery might not last. there are way to many tweaks out there which is why you have to do it yourself.
First set the phone up like you normally have it and test the battery life. if you can live with it your good. if not start looking at the settings. Read the tweaks but don't just take them as golden as everyone is different and uses their phone different. Ask yourself if you real need that setting. (I like my screen time out at 2 min. do I need it NO 1 min is fine). When done with the settings move to the apps. load the flat ROM no apps and run for a hour and track your battery life. then add the apps 1 at a time or in small groups and let run an hour and track. there are was if find what apps are using the CPU or Battery but many do this normally and yet don't effect the battery much. Only way i have found is old school add them one at a time. When you find a bad one decide if you need it or can find a replacement.
I am done with Sense as Launcher Pro Plus is awesome and now with the only Widget I was missing (Calendar). Once I done going through my app list I will create a new thread in General to list the bad application I found unless someone else has or does before I done that is.

From what I have gathered from using .3 that apps auto sync/update on their own now with "always on mobile data" turned off. if you use advanced task killer, do a kill of all apps then turn the screen off. If you wait for a few minutes and turn the screen back on you will notice that apps like news, messages, Twitter, Facebook clock, weather and others will be active. From what I gather the decrease in battery life is from apps like those will send/receive data on 2.2 while on 2.1 apps would not update/sync until you manually refreshed or opened the app, as long as you didn't have "always on mobile data" enabled.
Edit: this reason is why I uninstalled fring. Just too bad I cannot uninstalled qik.

trojandnc said:
This is not directed at you personally, but at the words you chose to use:
I am sick and tired of "tweaks and settings and cutting things off." I used them and got over 30 hours on both DamageControl and Fresh.
Click to expand...
Click to collapse
It is a mini-computer. You don't use it like a "phone" anymore. You shouldn't expect more than 15-20 hours on it. Do you get angry when your laptop runs out of life after 5-6 hours? If you don't want to do tweaks, then don't. Keep a micro-USB at your desk at work and charge it there. I, myself, enjoy rooting so I don't mind tweaking it. I also get 30 hours of life on it due to this. If you don't like to do that, you get what you put into it.
trojandnc said:
I paid Sprint/HTC good money for this awesome phone (and am committed to pay them a whole lot more over the course of the next 22 months).
While I can understand the 4G thing, why should I have to cut off Data-WiFi-Bluetooth, power down the CPU, not use it a lot in order to get... in short, drive it like a Toyota Prius when then phone is billed as a Maserati? Why should I have to try out this app and that app(Overclock widget, SetCPU, System Manager, Task Killer, Autostarts etc which all use battery too) in order to get the phone to do what it should have done on June 4, 2010?
Click to expand...
Click to collapse
Again, you have unrealistic expectations for a smart phone it seems. All I have is Set CPU running on my phone with Fresh 3.0.1 and works just fine. I still use my phone like a "Maserati", it just lowers the CPU when the screen is powered off. That is like saying you want your car to idle when you get home at night until the next morning. It doesn't change how you drive it, just how you store it in the garage.
trojandnc said:
Most of the battery draining apps and widgets come pre-loaded with sense (i.e. the Favorite widget, Friendstream etc). Why should I have to resort to rooting my phone or not using it in order to get the thing to last all day?
Click to expand...
Click to collapse
You don't have to use them though. You can remove friendstream and go with either the twitter or FB update app or go without either and just check facebook like anyone else. As far as favorites go, you don't have to use that either. You can just make shortcuts to each person's phone number on that same screen if you think that is sucking all your battery life. There are always other options or fixes, but again you expect the phone to come out of the box perfect without any customization. You are getting away from what Android really is. Something tells me the Iphone would have been more your liking since it is built around lack of true customization. This isn't a rip, but just saying if you want cookie cutter phone reliability, it is hard to beat Apple. If you want the ability to tinker with the phone, the power to change things, and the power to make your phone yours, then that is more Android.
trojandnc said:
I'm keeping my EVO cause I love the device, but maybe Sprint/HTC need a little of the medicine that Jobs/Apple is getting in the form of lawsuits due to over-promising/under-delivering.
/off_my_soap_box
Click to expand...
Click to collapse
I can understand your frustration, but nothing was ever promised to us on purchase. I don't remember anywhere seeing something saying the battery would last 30+ hours out of the box. Apple had an actual structural issue with their phone, that is why they had the lawsuits and PR nightmare. This is just the phone doing what most would probably expect(at least anyone who had a G1 or Hero or any of the earlier Android phones). You love the device enough to keep it even with your frustration, something tells me it works quite well for you. But I have yet to see any over-promising/under-delivering on the Evo myself.
And no, I don't work for Sprint or HTC. And no offense meant to you as a person, just I didn't understand your motives on your frustration. Guess we will have different opinions on the Evo so far.

diomark said:
maybe because some of the htc sync stuff that you might have disabled before re-enabled.
Check that.
-mark
Click to expand...
Click to collapse
I had the same battery problem after updating to 2.2. After 3 hours my battery was at 50%. Normally it'd be at 50% after 9 to 10 hours of usage.
I did find that some settings had been reset. Once I turned off all the crap syncing, gtalk logging in, Sprint Zone, etc my battery usage has seemed to flatten out.
I made it an hour and only dropped 2% which is much more like it. This is all with very little usage going on.

Buy a new battery! Best solution!
No joda!
Sent from my EVO!

very funny just pluged my phone in using flipz newest after 19 hours
make sure you are signed out of googletalk !!

[Discussion] Talking about battery life with Android

Hi All,
I've test all of Android builds with lastest kernels but Android on hd2 still eats battery like a T-Rex
My phone survival time not longer than 6 hours on GPRS network.
How about yours?

Come on man, I'm fairly new here but I'm comfortable enough to say... You have to have seen that there are several threads not only on this same topic, but even on how to improve your battery life with Android.

I've try all of these tips not work for me How is yours?

Make sure to turn down the brightness of your screen. There is a thread not far from this one titled "how to improve battery life on Android HD2." Read that. Also put your phone on a charger any time you're near one: desk, car, couch, etc. Disable some of the always on widgets, maybe don't sync social networks or minimize the frequency they sync... the list could go on.
The fact of the matter is these are not final builds and are running from the SD card. A super long battery life isn't to be expected. Follow some if the steps above, read the how-to thread, and give it a shot.
Don't forget to thank the devs who put this together.
Sent from my HTC Desire using XDA App

With SetCPU running and set up properly, after a day of normal use (around 16 hours) on Shub's Cyanogen's 1.1 build I have around 15% battery left. So clearly you have something setup wrong to be only getting 6 hours. My battery life is now no worse than it was on Windows Mobile.

yeah i get over 20 hours

I got 20 hours with heavyish use for 10 hours, and 10 hours no use.
Which is about the same as i'd get with just winmo.
I could easily use this build for my day to day phone

trueside said:
I've try all of these tips not work for me How is yours?
Click to expand...
Click to collapse
If I'm using the phone heavily, 12-15 hours. I have no idea how much idle time I would get as my phone is rarely idle as I use it for work constantly... And this is without using SetCPU or any of the battery life tips/tricks honestly. Keep in mind I use the T-Mobile "extended battery" case which recharges my battery with the flip of a switch on my case but I don't ever let it get below 20%.

Hmm I see. I'm starting to thing my battery problem doesn't about Android Builds maybe my SD cards needs a lot of power to work?? What is your android setup? Which build which zimage?

jjones1983 said:
If I'm using the phone heavily, 12-15 hours. I have no idea how much idle time I would get as my phone is rarely idle as I use it for work constantly... And this is without using SetCPU or any of the battery life tips/tricks honestly. Keep in mind I use the T-Mobile "extended battery" case which recharges my battery with the flip of a switch on my case but I don't ever let it get below 20%.
Click to expand...
Click to collapse
um...that's not a really good comparison.
that's like saying "I can get 1000 miles on one fill up, but I have two tanks and just flip the switch for the second tank".
What do you get with out using the extended battery case?

HotShotAzn said:
um...that's not a really good comparison.
that's like saying "I can get 1000 miles on one fill up, but I have two tanks and just flip the switch for the second tank".
What do you get with out using the extended battery case?
Click to expand...
Click to collapse
Sorry, I didn't make that clear. I get 12-15 hours without having to flip on my case. I usually switch it on at around 20%, which is why I said I never let it go below 20%...
Edit: I forgot he asked me which build and zImage as well.
MattC Froyo RC 1.4, 08/03 zImage.

battery "life" is not the main issue here.
in my opinion, the main issue is power management. that causes short battery life combined with high battery temperature.
can the devs say the reason(s) why is the power management that bad? that is the main issue with android builds right now, once it's solved, android can be a true main OS for everyday use.

trueside said:
Hmm I see. I'm starting to thing my battery problem doesn't about Android Builds maybe my SD cards needs a lot of power to work?? What is your android setup? Which build which zimage?
Click to expand...
Click to collapse
i zimage is out yesterday

victorbd said:
i zimage is out yesterday
Click to expand...
Click to collapse
where do you see a new zimage?
http://cotulla.pp.ru/leo/Android/
just checked and there's none for Aug5?

Other than using the latest zimage and SetCPU to force autoscaling CPU and Conservative CPU Governor, I've noticed Darkstone's vanilla froyo v1 build gives pretty good battery life (vs say, the CM RC1 build) by default.
I've also noticed that I get great standby battery consumption if I ensure that S2U2 is running in the WM background (as iLock2.exe) with the setting "Don't Suspend Power" unchecked in S2U2 options before booting into Android.
On a 3G network with a idle data connection, the (standard HTC) battery only drops 10% for a 10-11 hour standby time.

jjones1983 said:
Sorry, I didn't make that clear. I get 12-15 hours without having to flip on my case. I usually switch it on at around 20%, which is why I said I never let it go below 20%...
Edit: I forgot he asked me which build and zImage as well.
MattC Froyo RC 1.4, 08/03 zImage.
Click to expand...
Click to collapse
You get 12 hours with heavy use? Mind telling us what Radio/Rom you are using? What other settings?
I managed to get to 8.5% per hour drain with normal use.
Of course, I never got better than that with WM anyways...

lol i get about 31 to32 hrs (1hrs mp3 and 30min internet) with light use

I must admit my android battery issues were solved with setcpu and screen brightness tweak.
Only funny thing is that with my setcpu profiles identical between Mattc-froyo and Shub-cyanogen, there is a short delay in the latter's response to a key press once screen is off and device locked. No delay on Mattc.....

Best rom for battery life?

I have been bouncing around from rom to rom trying to figure out which has the best battery life, its too hard to tell. I know that htc sense roms killed my battery off faster, but no matter what it tends to die off much quicker than it did before I put android on it in the first place. Anybody have any suggestions? Thanks

Iamgpc gingerbread is great as long as Bt is turned off when not in use.
Sent from my Nexus One using XDA App

I agree with audioslim. Stable, clean, everything works.
Here's the thread:
http://forum.xda-developers.com/showthread.php?t=909096

I did the same as you, rom hopping...
But everytime i came back to where i am now:
AF403 Desire HD
This is a great rom for your battery.
But as in any rom you should think about what you wanna sync and when.
I use LauncherPro instead of Sense, and I think it better then Sense.

Thanks, so basically 2.2 rom's without sense? And does apps2sd or ext4 have any effect on battery life?
Sent from my HTC HD2 using XDA App

One suggestion for people that are concerned with battery life...
I recently did an experiment of sorts and turned off 3G on my phone. I found that I went from 1 day per full charge to 3 days per charge. I obviously didn't have updates from the email app, twitter, facebook etc., but I just turned 3G on every now and then and updated everything manually. I've since started leaving 3G off whenever I don't need it and generally get 2 days use out of a full charge.
Obviously this won't suit everyone, but if turning off 3G when you don't need it is an option for you then you will definitely experience a much better battery life!

rrodxbox360repair said:
Thanks, so basically 2.2 rom's without sense? And does apps2sd or ext4 have any effect on battery life?
Sent from my HTC HD2 using XDA App
Click to expand...
Click to collapse
For best battery, don't use Sense.
For best internal memory use ext4, this is better then apps2sd.
This does not realy effect your battey

johncmolyneux said:
One suggestion for people that are concerned with battery life...
I recently did an experiment of sorts and turned off 3G on my phone. I found that I went from 1 day per full charge to 3 days per charge. I obviously didn't have updates from the email app, twitter, facebook etc., but I just turned 3G on every now and then and updated everything manually. I've since started leaving 3G off whenever I don't need it and generally get 2 days use out of a full charge.
Obviously this won't suit everyone, but if turning off 3G when you don't need it is an option for you then you will definitely experience a much better battery life!
Click to expand...
Click to collapse
That's what i mentiont in my first post here.
Forgot about GPS, I never have this on, only when nessesary.
My facebook, email and Google sync every hour, the rest once a day.
When i go to bed, I have about 25% left

rrodxbox360repair said:
I have been bouncing around from rom to rom trying to figure out which has the best battery life, its too hard to tell. I know that htc sense roms killed my battery off faster, but no matter what it tends to die off much quicker than it did before I put android on it in the first place. Anybody have any suggestions? Thanks
Click to expand...
Click to collapse
I really love this build "DL DesireZ v3.3 final][DL Data2SD/Ext4 v2.3][Nand/SD/MAGLAR]"
can be found here http://forum.xda-developers.com/showthread.php?t=913597
It's a NAND version but there is SD version as well.. (nand v. download link can be found on page 192 because the author didn't update the post yet)
For me it's perfect. The battery life lasts for a complete day. I listen to music about 2-2.5 hours, use internet for about 20-30 min a day and make a few calls. But I always turn internet off when I don't use it it really saves battery (i think it works for any build). Also 1 day I listened to music for 6 hours, used internet for +-30 mins and there was still 37%. I was really impressed!

Decent battery life
Currently I'm using- MDJ's CyanogenMod 7 v. 2.6 and my way is to switch off data. I'm switching on whenever I need. With regular use of data( switch on/off) my battery last for almost three days.

controlpete said:
Currently I'm using- MDJ's CyanogenMod 7 v. 2.6 and my way is to switch off data. I'm switching on whenever I need. With regular use of data( switch on/off) my battery last for almost three days.
Click to expand...
Click to collapse
Are you serious? I mean I haven't tried CyanogenMod 7 ROM but what I remember back to stock WM6.5 it was easily last for 1 day for me with normal use.. And now I have the same results on Android (desirez v3.3 rom), I'm very satisfied with that. However 3 days it's kind of hard to believe or I'm wrong? Anyway, how much do you use your phone during the day?

timoshina said:
I really love this build "DL DesireZ v3.3 final][DL Data2SD/Ext4 v2.3][Nand/SD/MAGLAR]"
can be found here http://forum.xda-developers.com/showthread.php?t=913597
It's a NAND version but there is SD version as well.. (nand v. download link can be found on page 192 because the author didn't update the post yet)
For me it's perfect. The battery life lasts for a complete day. I listen to music about 2-2.5 hours, use internet for about 20-30 min a day and make a few calls. But I always turn internet off when I don't use it it really saves battery (i think it works for any build). Also 1 day I listened to music for 6 hours, used internet for +-30 mins and there was still 37%. I was really impressed!
Click to expand...
Click to collapse
Yes, DL DESIREZ 3.3 is the best. 2 days for me

Please delete.

Deleted......

"8. Frequently use the native task manager to free memory.. Long press on the big button to access task manager."
This is wrong advice. This actually increases battery use. The frequently used applications stay in memory so that they will not be loaded again when needed. If you purge the memory like you recommend, these apps will have to be reloaded every time, which significantly increases battery usage.

Deleted......

jangomango said:
No doing this once in a while will kill off any apps you thought were closed.. Quite often I exit a game to find its still there hogging memory.
But thanks for the criticism.
Click to expand...
Click to collapse
It's not wasting memory, it's just sitting there doing nothing in case you launch it soon again. If that memory is needed by another program, Android releases it immediately.
Try this yourself. Launch a game, then exit. You'll see the game still in memory. Then launch other apps and games. You'll see that the first game is no longer in memory, because Android saw that that part of the memory is needed elsewhere. It's all automatic and it works well. There's no need to fiddle with it. As I said, fiddling with it actually increases battery usage, because frequently used apps have to be reloaded every single time, instead of being called back from memory.

Deleted......

aydc said:
It's not wasting memory, it's just sitting there doing nothing in case you launch it soon again. If that memory is needed by another program, Android releases it immediately.
Try this yourself. Launch a game, then exit. You'll see the game still in memory. Then launch other apps and games. You'll see that the first game is no longer in memory, because Android saw that that part of the memory is needed elsewhere. It's all automatic and it works well. There's no need to fiddle with it. As I said, fiddling with it actually increases battery usage, because frequently used apps have to be reloaded every single time, instead of being called back from memory.
Click to expand...
Click to collapse
I have to disagree with this. Quite often I have noticed that after playing some game my battery still keeps draining like hell.
I know that Android is SUPPOSED to work as you said it would, but there are quite a lot of rogue apps which don't behave like that.
So unless you are 100% sure that your apps are not rogue apps in any possible situation I also have to suggest to use the "kill all" once in a while.
I don't do it often, maybe twice a day but it helps.

Deleted.....

I have done most of the things you mentioned, but my battery is still appalling. I am using VillainROM 1.4, KF2. I really want to fix this, I heard some people are struggling to get 12 hours from their phone, I am one of those.

twitceh said:
I have done most of the things you mentioned, but my battery is still appalling. I am using VillainROM 1.4, KF2. I really want to fix this, I heard some people are struggling to get 12 hours from their phone, I am one of those.
Click to expand...
Click to collapse
I agree, yesterday I barely used my phone. 1 hour and 40 minutes of screen on time, 3G, Sync, Whatsapping most of the time that I used it, wifi, too. Downloaded a few apps maybe 10 minutes of games. It was at 40% when I went to bed 15 hours later. I barely touched it! LOL.
I don't mind though, this is a FANTASTIC phone. I wouldn't change it for any other phone at the moment. I will probably get an extended battery case from Samsung in the near future. It's a case AND a battery ALL IN ONE! Woopie! lol.

twitceh said:
I have done most of the things you mentioned, but my battery is still appalling. I am using VillainROM 1.4, KF2. I really want to fix this, I heard some people are struggling to get 12 hours from their phone, I am one of those.
Click to expand...
Click to collapse
I am starting to believe that it is a hardware fault..If lucky it could be because of the battery. You could try to order another battery and see how it goes.
If not so lucky then its something else in the phone which is almost impossible to fix at home.

jangomango said:
I appreciate you clogging my new thread up with your opinion.. Nice one..
Click to expand...
Click to collapse
I have no personal problem with you, but if you open up a thread for newcomers, you shouldn't give misleading information. Thinking task killers improve battery is a telltale sign of noobness.
For newcomers who really want to learn about memory management in Android and the truth about task killers, I recommend these two articles:
http://geekfor.me/faq/you-shouldnt-be-using-a-task-killer-with-android/
http://www.droid-den.com/android-guides/android-guide-should-i-use-a-task-killer

jangomango said:
FFS.. my point is.. Some apps you only use once in a blue moon like Games. You dont need these still sitting there..
I appreciate you clogging my new thread up with your opinion.. Nice one..
Plus I find it makes my phone snappier after a good purge.. And FYI I still get over 1 and a half days from the battery..
Is there any chance you can get off my **** now?
Click to expand...
Click to collapse
Pretty sure with an attitude like that you'd be lucky to have someone on your ****.

My simple solution. Buy juice defender ultimate. Its cheap only less than 9 dollars. Set it to extreme and configure each app. Then go to market and search 'gothic'. Select the darkest and most plain black wallpaper. You are done! I am getting 2 days on stock rom with this setup. With about 20% of the time surfing the net via HSDPA or 3g.
Sent from my GT-I9100 using XDA Premium App

aydc said:
I have no personal problem with you, but if you open up a thread for newcomers, you shouldn't give misleading information. Thinking task killers improve battery is a telltale sign of noobness.
For newcomers who really want to learn about memory management in Android and the truth about task killers, I recommend these two articles:
http://geekfor.me/faq/you-shouldnt-be-using-a-task-killer-with-android/
http://www.droid-den.com/android-guides/android-guide-should-i-use-a-task-killer
Click to expand...
Click to collapse
I'd have to agree. Task killers are generally a bad idea.
Sure, there are poorly coded apps that stay in memory and use up CPU cycles. Those are apps that needs to be closed via task killers. But is that really the solution?
What you should do is NOT use such apps. If you do continue to use those apps, you're just supporting the developer for his poor coding. In that case, you're on your own.
OP: Try not to get too antagonistic. This is after all, a discussion forum.
Here's an analogy just for fun....
General consensus: You don't need a case for your phone.
Argument: You do need a case for your phone because SOME phones have antennae issues and a case will alleviate those issues.
Weird solution: Buy those phones wtih antennae issues and then also buy a case.
Real solution: Don't buy those phones with antennae issues! (wink wink)

ohyeahar said:
I'd have to agree. Task killers are generally a bad idea.
Sure, there are poorly coded apps that stay in memory and use up CPU cycles. Those are apps that needs to be closed via task killers. But is that really the solution?
What you should do is NOT use such apps. If you do continue to use those apps, you're just supporting the developer for his poor coding. In that case, you're on your own.
OP: Try not to get too antagonistic. This is after all, a discussion forum.
Here's an analogy just for fun....
General consensus: You don't need a case for your phone.
Argument: You do need a case for your phone because SOME phones have antennae issues and a case will alleviate those issues.
Weird solution: Buy those phones wtih antennae issues and then also buy a case.
Real solution: Don't buy those phones with antennae issues! (wink wink)
Click to expand...
Click to collapse
+1 to this, task manager was a good idea in the old days (eclair & froyo), but gingerbread does a great job in memory management, there is no need for "task management kill" everytime you exit. Although I am a bit conservative on "frequently killing apps in gingerbread will actually decrease your battery life", but certainly, doing so will not improve it.

Using the 'Clear Memory' feature in Task Manager will stop and kill everything. Some widgets, apps will stop work. So that feature is extremely kiddish imo.
But using ATK won't do it as it has an Ignore list, if its set up properly then its the best.
Regards.
Sent from GT-I9100

jangomango said:
With all gripes over battery life, I thought it would be a good idea to create a list of steps for newcomers that will help make battery life better.
With these steps I am getting well over 24 hours.
Feel free to add some and I will update the OP.
1. Flash a rom.. I'm using Lightening Rom 2.0 with KG1
2. Flash a kernel.. I use Chainfires KG1
3. Use Titanium backup to freeze any crap you dont need. There is a guide on here already about this.
4. Disable fast dormancy.. *#*#9900#*#*
5. Wifi Sleep Policy set this to Screen Off.. Settings>Wireless & Networks>WiFi Networks>Menu>Advanced>WiFi Sleep Policy
6. Manage your radios.. Use the power widget to turn off BlueTooth,WiFi, GPS, even 3G when not needed.
7. Screen brightness.. Set this as low as you can whilst still being readable.
8. Frequently use the native task manager to free memory.. Long press on the big button to access task manager.
9. Monitor what apps are using battery.. Menu>Settings>About Phone>Battery Usage
10. Use a static wallpaper.. Live wallpapers are nice but draw more power than a still image. Dark backgrounds are best.
11. Full overnight charge with phone off.. I found this makes a difference.
12. Change the frequency at which your mail and widgets update. Instead of 30 minutes or whatever try 1 hour.
13. Turn off AutoSync when not needed. Menu>Settings>Accounts &Sync. Note.. This will do what it says and stop any app or widget syncing though..
Click to expand...
Click to collapse
I'll only comment on the points I can share my opinion with:
4. didn't change a damn thing for me regarding the battery, it just made switching betweens 3g and H slower.
5. will try that, but won't it turn wifi off when the screen is off thus disabling any sync via wifi when screen is off?
6. common sense not to leave everything on all the time
7. auto brightness does a good job for me, a mate uses lowest brightness and has no advantages besides having problems reading from the screen sometimes
8. just use it to end apps/games that won't stop after using them like KiesAir
10. true
11. doesn't make a difference
12. sure but whoever needs (e.g. for work) push (like me) will have to skip that
13. see 12.
fenguinpower said:
My simple solution. Buy juice defender ultimate. Its cheap only less than 9 dollars. Set it to extreme and configure each app. Then go to market and search 'gothic'. Select the darkest and most plain black wallpaper. You are done! I am getting 2 days on stock rom with this setup. With about 20% of the time surfing the net via HSDPA or 3g.
Sent from my GT-I9100 using XDA Premium App
Click to expand...
Click to collapse
juice defender is my last option to squeeze more time out of my phone. still with my general usage I get around 36h our of one charge, mostly between 24h and 48h depending on how much I use it AND how good the reception is (better reception -> more battery life)

OP deleted.. This was supposed to be a usefull guide for newcomers but soon descended into a viscious disection of all my points. **** you all. Twats.

jangomango said:
OP deleted.. This was supposed to be a usefull guide for newcomers but soon descended into a viscious disection of all my points. **** you all. Twats.
Click to expand...
Click to collapse
You don't like healthy debate? These guys were quite polite, you were the one who spat his dummy out.

**** you aswell you **** jockey.

Battery optimizing [MIUI]

Oct 26 2011
ROM: MIUI 1.10.21
Kernal: [email protected] (oct 25th 2011)
902max 122min DARKSIDE
radio stock panache
been connected to wifi this whole time
and I got 84% @ 3 hours 46min. I expected 5hrs.
Im tryin to find out what the hell is draining my battery:
Watchdog app? yahoo messenger? rogue apps? (check out pics below!)
Does anybody have a suggestion for looking for the rogue apps besides watchdog lite? or is that the best one.
Any suggestion for tweaking settings? Ive included pics of whats running

jon_htc said:
Using MT4G white MIUI 1.9.30 demonspeed mod
Panache stock radio
Battery optimizing. Do these numbers look right?
What are optimal settings?
Check out current settings in pics along with stats.
GRRRRRRRRRRRRRRRR
Click to expand...
Click to collapse
1. looks normal, cell standby is usually the highest on MIUI. how long was your display on?
2. your OC settings look a little high for everyday use. I would try to OC lower and use the superbad governor. my settings are 1017/122 superbad and everything runs smoothly
3. looks like messaging and settings are taking up some memory, try killing those with the task killer. hold down the home button and a window will pop up, on the bottom there is "task killer"
4. looks normal with your OC settings
*edit* Battery Calibration app from the market also works really well, give it a shot. charge your phone til its 100%, and leave it plugged into the charger. run the app, calibrate your battery, then unplug and youre done

Thanks! Ill definitely make those adjustments and post results in a similar time frame. I didnt know I had a built in task killer ... dam i just freed 142MB! woohoo!
oh and what the heck is this? (in pic)

jon_htc said:
Thanks! Ill definitely make those adjustments and post results in a similar time frame. I didnt know I had a built in task killer ... dam i just freed 142MB! woohoo!
oh and what the heck is this? (in pic)
Click to expand...
Click to collapse
wow lol Ive never seen that before probably just give it a few days for your battery to even things out and settle in. it said your battery was in use for 3 seconds so just wait

LOL battery consumed 15% in half the time than previous. I DL'd battery calibrator, lowered setcpu to 1.2ghz w/onDemand. I wonder what is involved with android systems.

jon_htc said:
LOL battery consumed 15% in half the time than previous. I DL'd battery calibrator, lowered setcpu to 1.2ghz w/onDemand. I wonder what is involved with android systems.
Click to expand...
Click to collapse
if you tap on "Android System" itll show a list of all the apps and things associated, from there you can pinpoint on what is using up your battery and just kill that app. I also noticed that youre on MIUI and you have a screenshot app...you know that function is already built into MIUI, just hold volume down then tap the menu button. theres a list of all kinds of neat little button quirks in the OP of the thread

aznprodgy said:
you know that function is already built into MIUI, just hold volume down then tap the menu button. theres a list of all kinds of neat little button quirks in the OP of the thread
Click to expand...
Click to collapse
Dammit man definitely "beats" makin funnny shakin gestures ... thanks again.

Well, here is my 2 cents.
Keep i'm mind that I had pandora running continuously for almost 5 hours. I unplugged my phone at 11 am. It has been running for almost 13.hours..
I have noticed that if my phone is hooked to a wifi signal, the battery last easy 3 times more.
3 days ago I had it running for 14.hours and it was still at 74%, of course, very little use, since I was a working all day
Second image you can see that I have been keeping the screen on for 3 hours
Sent from my HTC Glacier using XDA App

Thanks guys ...
So today I jus setcpu!
Here is the adjustment and activities I did today in regards to battery usage:
Set CPU @ 1.1ghz smartass (same performance)
unplugged for 5hrs
4hrs using data: yahoo messenger, internet browse,gtalk
used ubermusic in traffic (bumpin "ni**as in paris" on repeat LOL)
1hr on wifi (unless wifi was automatically turned on at the mall)
no calls (TY columbus day)
Tried to take a pic at 85% to keep it consistant as the first pic. LOL
Ill be traveling this weekend so im gonna put the GPS to work.
I used GPS the other day @ 1.6ghz and the latency was so minimal
with reroutes being spoken after maybe 200-500 ft of a turn not taken.

DANCCS what Rom do you use?

jon_htc said:
DANCCS what Rom do you use?
Click to expand...
Click to collapse
O use MIUI.us .
I'm going to post you the progress during the day today.
I'm unplugged the phone at 9 am, right now is 11:22pm and I still have 61%
As you can see I have been all day hooked to a wifi. If i'm not in a wifi, I would be at 20% I think
Btw, my display says 48 min , so you can see that I didn't use my phone that much, I have been.working all day
Sent from my HTC Glacier using XDA App

As general information, what I did was:
Wipe everything
Install ROM
Factory reset
Install my basic apps
Drain the battery to zero
Charge it all the way to 100%
Calibrate it with the app on the market
let the battery die again til zero
Charge it again til 100%
After the second day, it was going.better
Fyi, if I am constantly on non wifi networks, it goes down faster.
And i'm using panache radio
Hope it works for you
Sent from my HTC Glacier using XDA App

The person before you recommended that tactic ... and I have done so to help with the result ive got.
Here is my next hurdle:
CELL STANDBY
I believe CM7 or RoyalGinger had an option to manipulate cell standby while on wifi networks. Since im not using MIUI ill be researching this to get rid of this issue.
Thanks to the replies and xda this is the longest ive had my phone unplugged @
21 hrs (i had to plug my phone via usb for 2min to get something from my SD card cause I was impatient to figure out how to send it wirelessly, so no screenshot)

jon_htc said:
The person before you recommended that tactic ... and I have done so to help with the result ive got.
Here is my next hurdle:
CELL STANDBY
I believe CM7 or RoyalGinger had an option to manipulate cell standby while on wifi networks. Since im not using MIUI ill be researching this to get rid of this issue.
Thanks to the replies and xda this is the longest ive had my phone unplugged @
21 hrs (i had to plug my phone via usb for 2min to get something from my SD card cause I was impatient to figure out how to send it wirelessly, so no screenshot)
Click to expand...
Click to collapse
to help with the Cell Standby, while connected to wifi, set your mobile network to 2G/GSM only in the mobile network settings. prevents your phone from trying to connect to 3G/4G which saves battery as well

aznprodgy said:
to help with the Cell Standby, while connected to wifi, set your mobile network to 2G/GSM only in the mobile network settings. prevents your phone from trying to connect to 3G/4G which saves battery as well
Click to expand...
Click to collapse
Thanks man! Ill do that. Are you running sense 3.5?

jon_htc said:
Thanks man! Ill do that. Are you running sense 3.5?
Click to expand...
Click to collapse
no problem bro. yep, running TDJ's Darkside Runny v1.5.1 and its the best Sense build Ive ever flashed. along with the blissmod and quicklaunch widget, its just bad ass. I was a religious MIUI user, but this rom just drew me in. of course the battery life is shorter on Sense builds due to the UI and all the eye candy and bloat, but after 19+ hours average on a full charge, Im not complaining one bit

Do you get commission selling sense roms ? LOL dammit MAN!
i would switch up if i could get 19hrs on sense 3.5. I like its UI interaction (ie text message has address and I can highlight and go straight to navigation)
My issue aside from battery is the widgets not loading correctly on sense 3.5. Do you get that?
With all that eye candy, bloat, etc What do you run your processor at? is it still 1012max superbad?

jon_htc said:
Do you get commission selling sense roms ? LOL dammit MAN!
i would switch up if i could get 19hrs on sense 3.5. I like its UI interaction (ie text message has address and I can highlight and go straight to navigation)
My issue aside from battery is the widgets not loading correctly on sense 3.5. Do you get that?
With all that eye candy, bloat, etc What do you run your processor at? is it still 1012max superbad?
Click to expand...
Click to collapse
nah, never had any problems with the widgets. everything works for me as it should. yeah Im still running 1017/122 superbad on Sense as well, no problems at all and everything is still smooth. I dont play games on my phaone, so I mainly browse the net, text, call, listen to music, etc...sync only when needed and OC when needed also.

aznprodgy said:
running 1017/122 superbad on Sense as well, no problems at all and everything is still smooth. I dont play games on my phaone, so I mainly browse the net, text, call, listen to music, etc...sync only when needed and OC when needed also.
Click to expand...
Click to collapse
NICE, I might try that in a couple weeks. Im gonna be on the road so I dont wanna make any major changes and
But this is how you kill a battery(pic & vid:
http://youtu.be/ionWqDJobVM

After 26 hours. The display says 2 hours and 45 min. Pretty much all the time on wifi.
In the next days I will try the new battery that I bought, it.us a 1700 capacity.
Let's see how it goes . And tomorrow I will usable the wifi , you are going to see the big difference
Sent from my HTC Glacier using XDA App