Database Users

battery drain identifier

Hi,
Is there an application that detect which program is consuming the battery more?

Not possible
You'd have to switch on each process individually and measure the increase in battery drain. Apps can only read the total drain.

davehutch said:
You'd have to switch on each process individually and measure the increase in battery drain. Apps can only read the total drain.
Click to expand...
Click to collapse
does cpu usage(like the ones in task managers) mean more drain? i'm thinking in the line of logging the cpu usage, configurable in 3, 5, 10 secs interval, at the least the top 3 would give us an idea.

Possibly
The major user is the screen obviously, but something like MemMaid would give you the CPU major users I think.

davehutch said:
The major user is the screen obviously, but something like MemMaid would give you the CPU major users I think.
Click to expand...
Click to collapse
checking MemMaid now...
does it follow the more memory, the more battery drain?

kill tasks n battery saving

hi all,
i m new user for Nexus one, i wonder what is the best task apps to auto kill when the phone in sleep mode in order to save battery. My phone havent ROOT yet, shall i do it? After i have update the Android 2.1 i found it very good compare with iphone.
thank you very much

Killing tasks won't help to save battery... don't buy the hype. Android will manage your apps for you.

No killing tasks can help your battery. There are many apps on the market that are poorly written and drain battery.

McFroger3 said:
No killing tasks can help your battery. There are many apps on the market that are poorly written and drain battery.
Click to expand...
Click to collapse
Well that makes sense... but I don't run any poorly written apps. And neither should you.
If you absolutely have to have a task killer, just download Astro File Manager. You'll need a file manager on this phone anyway, and Astro has a built in configurable task killer and can also back up apps to SD.

uansari1 said:
Well that makes sense... but I don't run any poorly written apps. And neither should you.
If you absolutely have to have a task killer, just download Astro File Manager. You'll need a file manager on this phone anyway, and Astro has a built in configurable task killer and can also back up apps to SD.
Click to expand...
Click to collapse
I try not to. But sometimes I get curious and download some random apps haha.
I use Advance Task Manager since I bought it when I had a Cliq.
It works good when I need to kill something to restart it or if I need to do a batch uninstall.
Astro is amazing and no one should have an android phone without it.

Thks all,
If so, i shall just leave as it is and not install any of those task killer or auto task etc......
But anyway to min the battery drain since there are so much apps running on RAM when the phone is in sleep mode. My battery can only last for 8 hrs from 9am till 5pm (i am so distracted, i do turn on my BT and talk on phone for at least 100mins-150mins a day.)
Thank you

chocodip said:
Thks all,
If so, i shall just leave as it is and not install any of those task killer or auto task etc......
But anyway to min the battery drain since there are so much apps running on RAM when the phone is in sleep mode. My battery can only last for 8 hrs from 9am till 5pm (i am so distracted, i do turn on my BT and talk on phone for at least 100mins-150mins a day.)
Thank you
Click to expand...
Click to collapse
Keep the screen brightness as low as you can. Also having a lot of widgets can contribute to battery drain.

uansari1 said:
Killing tasks won't help to save battery... don't buy the hype. Android will manage your apps for you.
Click to expand...
Click to collapse
while this is true, I notice that android's threshold for closing programs is lower than I prefer. It seems to start closing programs at around 25 mb free (on stock kernel and rom) as reported by ES strong's task manager. At this level there is a noticeable amount of sluggishness on my N1. Of course this only lasts for perhaps 10 seconds or so as I am switching apps or whatever until android closes the processes to free up some ram.
I've read comments like yours many times, and I go back to not using one for a while thinking I must just be paranoid. Each time I return to the task manager because I get ticked about sluggishness.
If you manage your ignore list carefully to avoid closing stuff you actually want running in the background you lose nothing. The phone is fast enough that it loads apps quickly even if they're not sitting in the ram, so I prefer to hit the autokill widget once in a while or after using something like the youtube app or other resource hogging apps that I don't use on a regular basis.
I haven't noticed a difference in battery life, but the task manager improves my experience with the phone. It seems that as long as the free memory stays around 40+ I don't see the sluggishness.

Which task killer you use?
rossiscatch said:
while this is true, I notice that android's threshold for closing programs is lower than I prefer. It seems to start closing programs at around 25 mb free (on stock kernel and rom) as reported by ES strong's task manager. At this level there is a noticeable amount of sluggishness on my N1. Of course this only lasts for perhaps 10 seconds or so as I am switching apps or whatever until android closes the processes to free up some ram.
I've read comments like yours many times, and I go back to not using one for a while thinking I must just be paranoid. Each time I return to the task manager because I get ticked about sluggishness.
If you manage your ignore list carefully to avoid closing stuff you actually want running in the background you lose nothing. The phone is fast enough that it loads apps quickly even if they're not sitting in the ram, so I prefer to hit the autokill widget once in a while or after using something like the youtube app or other resource hogging apps that I don't use on a regular basis.
I haven't noticed a difference in battery life, but the task manager improves my experience with the phone. It seems that as long as the free memory stays around 40+ I don't see the sluggishness.
Click to expand...
Click to collapse

My screen always in lowest light mode......i will try to install the advance task....hope it deos help abit.
McFroger3 said:
Keep the screen brightness as low as you can. Also having a lot of widgets can contribute to battery drain.
Click to expand...
Click to collapse

chocodip said:
My screen always in lowest light mode......i will try to install the advance task....hope it deos help abit.
Click to expand...
Click to collapse
Advance task manager also lets you set a timer for auto closing all open apps except for the ones you have on your exception list.

chocodip said:
hi all,
i m new user for Nexus one, i wonder what is the best task apps to auto kill when the phone in sleep mode in order to save battery. My phone havent ROOT yet, shall i do it? After i have update the Android 2.1 i found it very good compare with iphone.
thank you very much
Click to expand...
Click to collapse
Try Juice Defender,is free on the market and everytime you turn the screen to sleep it kills the background data to save battery and @ wake-up its normal again.Read the reviews.

rossiscatch said:
while this is true, I notice that android's threshold for closing programs is lower than I prefer. It seems to start closing programs at around 25 mb free (on stock kernel and rom) as reported by ES strong's task manager. At this level there is a noticeable amount of sluggishness on my N1. Of course this only lasts for perhaps 10 seconds or so as I am switching apps or whatever until android closes the processes to free up some ram.
I've read comments like yours many times, and I go back to not using one for a while thinking I must just be paranoid. Each time I return to the task manager because I get ticked about sluggishness.
If you manage your ignore list carefully to avoid closing stuff you actually want running in the background you lose nothing. The phone is fast enough that it loads apps quickly even if they're not sitting in the ram, so I prefer to hit the autokill widget once in a while or after using something like the youtube app or other resource hogging apps that I don't use on a regular basis.
I haven't noticed a difference in battery life, but the task manager improves my experience with the phone. It seems that as long as the free memory stays around 40+ I don't see the sluggishness.
Click to expand...
Click to collapse
I've got over 400 hours of uptime without closing ANY apps with a task killer, and haven't had ANY sluggishness. So if you're really noticing your phone slowing down (and be honest), then I'd exchange it. Frankly, I think a lot of people just "think" their phone is slowing down...

Cyanogen says don't use a Task killer!

Paul22000 said:
Cyanogen says don't use a Task killer!
Click to expand...
Click to collapse
So if cyanogen says jump of a bridge you would? lol
Just messing with you.

I ve installed the Juicedefender and advance task manger......hope meanwhile there will be sthg better. Battery usage is killing me....

uansari1 said:
I've got over 400 hours of uptime without closing ANY apps with a task killer, and haven't had ANY sluggishness. So if you're really noticing your phone slowing down (and be honest), then I'd exchange it. Frankly, I think a lot of people just "think" their phone is slowing down...
Click to expand...
Click to collapse
Yeah, I'm sure you're right.. it's all in my head.

Couple of things OP:
1. Bluetooth is a battery hog!
2. How frequent do you have email update, weather update, et al set to?
3. Did you properly calibrate your battery meter when you got your N1? (Two ways to do it, 1) follow the in box guide and charge the phone before using or 2) run down the battery until the phone shuts itself off, pull battery out, put it back in. Now, without turning it back on, put it on the charger and leave it on for a couple hours past the green light coming on, take off charge, finally turn back on)
4. Do you have WiFi running? GPS? Streaming anything?
Have you downloaded any apps from the market just on a quim? There are some pretty bad apps that will never close until you uninstall and do a soft reset, and sometimes uninstall again.
Killing apps is actually going to hurt your battery. It takes more juice to power up the CPU to open an app then it does to hold it in the RAM, unless it is a crap written app that keeps running, and running, and running... but you shouldn't be using those apps anyways.

rossiscatch said:
Yeah, I'm sure you're right.. it's all in my head.
Click to expand...
Click to collapse
It most likely is... even when apps sit idle in RAM, the CPU usage for them is 0% in almost every case. Like I said... I don't have those issues at all, so it's either in your head or you have a dud.

uansari1 said:
It most likely is... even when apps sit idle in RAM, the CPU usage for them is 0% in almost every case. Like I said... I don't have those issues at all, so it's either in your head or you have a dud.
Click to expand...
Click to collapse
I don't think it's a problem with my phone. If you don't notice then good for you. I notice it and it bothers me. Your finger pointing is neither helpful or needed.

economy kernel

hello.
could you help me to chose economy kernel for my device i9000.
i need more working time on my device.
thx for answers

Well, if you are willing to sacrifice some power you could underclock with Damian's ultimate kernel and as well undervolt (whatever your phone can handle)
apart from changing the kernel, have you tried tasker? this app can really help you to save some battery...

I dont no about Kernels But ive heard 'insanity' ROM is amazing on battery life without losing speed and features.
check for it under development and see what Kernel people are using with it.

i try to underclock CPU but program that i use cant use all frequency only 100 - 500 mhz.
can you give me advice what program can underlock CPU and good task killer.
i need much web serfing

elxeon said:
i try to underclock CPU but program that i use cant use all frequency only 100 - 500 mhz.
can you give me advice what program can underlock CPU and good task killer.
i need much web serfing
Click to expand...
Click to collapse
as for now, try damian's kernel, underclocking setting is in the recovery menu. As far as I know, he is working on an app for the new kernel but just try version 1.1
Concerning task killers, I found out that they do more harm than good. Don't use them...
The problem with web surfing is that the display is on all the time (what else?!^^) and it consumes a lot! there is not much one can do about it...

how can i reduce consamption of display? can i change white color on black in browser? to reduce consamption of energy?

elxeon said:
how can i reduce consamption of display? can i change white color on black in browser? to reduce consamption of energy?
Click to expand...
Click to collapse
I assume you have already set brightness to minimum, in addition you could use the app "screen filter" which makes the display even darker but then it is only readable in the dark.

Do you set your brightness to automatic ?? thats a big help
As for changing display color i dont know if thats possible, unless you can find a themed version
EDIT: sorry just noticed the above post

GMH24 said:
I assume you have already set brightness to minimum, in addition you could use the app "screen filter" which makes the display even darker but then it is only readable in the dark.
Click to expand...
Click to collapse
i already done all your advice
may be thomething else?)
i use program that control brightness but i forgot how it's called. i download it from android marke and than reflash device
and say please One Click Lag Fix APK decrease or increase reducing power?

lagfix will always reduce battery life, but the more updated lagfixes use less, but still use more than stock.
Have you got the app "juicedefender" thats a good app and i have been using it daily for months.

elxeon said:
and say please One Click Lag Fix APK decrease or increase reducing power?
Click to expand...
Click to collapse
I ran some test cycles with speedmod and ultimate kernel with both standard file system and converted system. Therefore, I can say that just changing the filesystem does not influence battery life in any way noticeable.

azzledazzle said:
lagfix will always reduce battery life, but the more updated lagfixes use less, but still use more than stock.
Have you got the app "juicedefender" thats a good app and i have been using it daily for months.
Click to expand...
Click to collapse
it's realy working?
thx i will test it.

GMH24 said:
I ran some test cycles with speedmod and ultimate kernel with both standard file system and converted system. Therefore, I can say that just changing the filesystem does not influence battery life in any way noticeable.
Click to expand...
Click to collapse
as i know One Click Lag Fix APK change only file system?

its not MEGA improvement but the donate version has more options. what it does is cuts off all connectivity on screen off, so nothing is being used when it shouldnt be.
its really good IMO, and the partner to the app is 'juice plotter' this will identify what running processes are happening when the phone is idle, allowing you to modify to save battery life a little more. another similar app which is also good but a little hard to understand is 'task identifier' this is similar to juice plotter,
it tells you what apps and processes are starting up automatically. Over night i found 48 processes happening when i was sleeping. THAT drains battery

What exactly are your battery stats?
how long does your phone last on one charge? how long is the display on? how long do you call?

elxeon said:
i already done all your advice
may be thomething else?)
i use program that control brightness but i forgot how it's called. i download it from android marke and than reflash device
Click to expand...
Click to collapse
I like speedmod's modification on screen brightness that allows for even lower brightness than I got from voodoo kernel. No idea if other kernel has such feature.

on one full charge i get roughly 2 days.
display is on automatic and i make about 5 - 10 calls a day, and text all day, i manually push emails every few hours and browse the market / xda / youtube for a few hours a day.
Im not a heavy user, but i play alot of games ( especially angry birds ) im more than happy with my battery usage.
Im also on the JQ1 modem, if this is of any use.

If you want to use screen filter, leave the brightness at automatic and it is great in all but the brightest sunlight. I use auto brightness and 60% filter to good effect. You can create a widget, so it can be turned off if required. It also plugs in to Tasker if you want to set up automatic profiles.
Also, the Super Optimized Kernel is worth a look. Each OC/UV value can be completely customized (unlike DamianGTO's kernel, which relies on a series of presets), using the "Voltage Control" app.
I would stay away from Ext4 lagfixes if battery life is of upmost importance. That said I use lagfixes and am torn between JFS and Ext4 with 'unsafe' mount options (selected in recovery). EXT4 with 'safe' mount options uses far too much battery IMO.
JFS is somewhat unstable, and EXT4 'unsafe' can become corrupt after an improper shutdown. The battery life with ext4 'unsafe' is slightly worse than JFS, but you get a corresponding slight increase in performance. Try each for a day if you go that route before choosing, but for the reasons described above be prepared to reflash in case of disaster...

[SOLUTION]Increase battery life on CyanogenMod Alpha 8

Guyz, i found a way which helps increase battery life on CyanogenMod by Marcel(THNX to him).
I was wondering whether an app closes when we press back button,so i needed a task manager,but cyanogen doesn't have a task manager so i downloaded one from market and so many apps were open ,almost all apps were open.
So i killed them all and battery life has pretty much increased since then.
Also i set some profiles in setcpu and in the task manager to kill unnecessary active apps every 30mins.
Both these methods combined....i am getting a good battery life.
However the battery drain on internet still doesn't solve.However the overall battery backup has increased.
Also check this out:Install a task manager(i downloaded advanced task manager)then restart your phone then as soon as the phone starts check out the number of active apps on task manager.Almost all are open.Hope Marcel fixes this bug
My battery now is at 70% after 12 hours from 100%...(i browsed facebook for some time and listend to 12-15 songs on headphone) and that too i didn't charge the 100% fully,so we can hope for more battery backup.
If anyone has any other ideas to increase battery life on cyanogenmod plz post here

vivekdumbre said:
Guyz, i found a way which helps increase battery life on CyanogenMod by Marcel(THNX to him).
I was wondering whether an app closes when we press back button,so i needed a task manager,but cyanogen doesn't have a task manager so i downloaded one from market and so many apps were open ,almost all apps were open.
So i killed them all and battery life has pretty much increased since then.
Also i set some profiles in setcpu and in the task manager to kill unnecessary active apps every 30mins.
Both these methods combined....i am getting a good battery life.
However the battery drain on internet still doesn't solve.However the overall battery backup has increased.
Also check this out:Install a task manager(i downloaded advanced task manager)then restart your phone then as soon as the phone starts check out the number of active apps on task manager.Almost all are open.Hope Marcel fixes this bug
My battery now is at 70% after 12 hours from 100%...(i browsed facebook for some time and listend to 12-15 songs on headphone) and that too i didn't charge the 100% fully,so we can hope for more battery backup.
If anyone has any other ideas to increase battery life on cyanogenmod plz post here
Click to expand...
Click to collapse
Advanced task manager is not recommended by many devs in various different forums for some reason it's not good for the phone.

may i know why is it harmful to the phones?never heard of this before!!

vivekdumbre said:
may i know why is it harmful to the phones?never heard of this before!!
Click to expand...
Click to collapse
Maybe Google can help. I just know its not recommended
Sent from my GT-I5800 using XDA

Take a look on this page... It's a good explanation
lifehacker[dot]com/5650894/android-task-killers-explained-what-they-do-and-why-you-shouldnt-use-them
sry for this stupid link, but as I'm new here, I'm not able to post third-party-links...

DerpyDerp said:
http://lifehacker.com/5650894/android-task-killers-explained-what-they-do-and-why-you-shouldnt-use-them
Click to expand...
Click to collapse
Here u go

One basic point is that Android will automatically open certain apps by default. When you kill these apps the task killers claim they will stay killed but because Android opens them by default they will be launched again so this cycle of killing and re-launching apps will just continue which will use up more battery instead of conserving it.

settings --> applications --> Development --> Stop app via long-press.
You can always chek this option, so you know that you close all applications everytime you use them.

I will recomend you Auto Memory Manager. You can modify the values in that android stars to close process.
Y use it on agressive mode, and always have around 80-90 mb free of RAM memory (less apps open == fasther phone == less memory used
Sorry for my english,

i think using task killers is not a good idea.
we can use task manager (default app) it is better than any other app

[Q] Reduce Android OS battery usage?

I'm wondering if there is anything I can disable to reduce my Android OS battery usage. It's always number 2 on the list behind screen. The list of included services has roughly 20 items in it. I tried to include some attachments for you to look at and see if there is something I can do.

rick09 said:
I'm wondering if there is anything I can disable to reduce my Android OS battery usage. It's always number 2 on the list behind screen. The list of included services has roughly 20 items in it. I tried to include some attachments for you to look at and see if there is something I can do.
Click to expand...
Click to collapse
No information whatsoever is given by those screens, get better battery stats and check the wakelocks. My bet is on google services.

I just want to know if I can safely freeze (with TiBackup) anything on that list. Such as Eltest, LG vpn, LG setup wizard, LG eula, LG pc suite etc. Things I don't use. Google play services is in a totally different section and surprisingly doesn't cause as much of a drain.
Sent from my LG-D801

BTW I use the xposed module Amplify to control my wakelocks and Greenify to control running apps. But neither of those help with Android System drain which is a lot of LG stuff that I don't use regularly.
Sent from my LG-D801

Choristav said:
No information whatsoever is given by those screens, get better battery stats and check the wakelocks. My bet is on google services.
Click to expand...
Click to collapse
Here is a screenshot from today, screen on time was 2hrs 48mins at this point, full brightness since I've been outside all day. Location service and sync turned on. Like I said Google services low drain whereas Android System (posted screenshots) is a major drain.