Database Users

Battery drain

Trying to figure out 1) cause of battery drain and 2) poor power mgmt.
I had a fully charged phone yesterday at 5pm, leaving work.
When I tried to turn it on this morning it was completely, completely drained.
I have 4min timeouts set on the phone for backlight off, and 5min for device off when on battery. I had WiFi tuned off, Bluetooth on.
I did have Wayfinder and GPS active on the way home, and may have just turned off the phone. If I turn off the phone with Wayfinder active, would this continue to drain the battery, GPS reception is passive, is it not ???
How come the battery drained to such an exent, it took 5 min on a charger before it would even power up, from a full reset and WM load.
My old XDA would hibernate at low battery percentage, and still have a reserve charge to keep the phone content/settings intact.
Any views, suggestions.
Peter

When I first got my x1 end of last year, I found I only got around 6 hours out of a battery.
Now I get about 36 hours of normal use out of one charge. Including 1 hour of gps each day/ half hour of wifi.
What worked for me was to, reduce back light time to 10 seconds when standalone. I also found S2U unlock drained the battery, so I now use the standard unlock.
Also, ensure that no auto updates (only manual) are done e.g SPB weather, insight RSS etc.
I have also changed my battery to a Mugen 1800 mAh. This seems to have increased my time by around 25% on average use.

S2U2 no longer drains my battery, one of the old versions did and so did the old version of AE Button but they are both good now, I get min of 2 days and max of about 5 depending on load of use... normal use is about 3... (internet for emails and dling rss feeds and some reading of forums 1 hour, reading books/texts about 4-5 hours and listening about 2hours plus calls and texts is a normal day for me...)
GPS does drain your battery pretty quick though...

pokdub said:
I did have Wayfinder and GPS active on the way home, and may have just turned off the phone. If I turn off the phone with Wayfinder active, would this continue to drain the battery, GPS reception is passive, is it not ???
Peter
Click to expand...
Click to collapse
There is no poor power management in there.
It is all because of wayfinder. GPS is still active if you leave Wayfinder active all the time and it will drain the battery supoerfat.
Try closing Wayfinder and you will what I am talking about.

I found out that any Battery applications greatly reduces my (juridically - my wife's) X1i lifetime.
AFAIK to measure any battery charge you need to short circuit it for a millisecond or so and measure the current, not the voltage. When any Battery software does it (through the hardware) every few seconds your battery looses its charge faster.

sms2000 said:
I found out that any Battery applications greatly reduces my (juridically - my wife's) X1i lifetime.
AFAIK to measure any battery charge you need to short circuit it for a millisecond or so and measure the current, not the voltage. When any Battery software does it (through the hardware) every few seconds your battery looses its charge faster.
Click to expand...
Click to collapse
I am running Home++ and its fairly decent as far as drain goes... I dont notice much more than when its not running...

Tks for all your feedback.
I am fairly ok with normal use and battery life.
In this particular instance the drain happened so fast, overnight, and I was not using the X1 at all. (or so I thought so).
So I am curious to know what caused the rapid drain, and why the X1 does not have a more controlled low power close down.

pokdub said:
Tks for all your feedback.
I am fairly ok with normal use and battery life.
In this particular instance the drain happened so fast, overnight, and I was not using the X1 at all. (or so I thought so).
So I am curious to know what caused the rapid drain, and why the X1 does not have a more controlled low power close down.
Click to expand...
Click to collapse
I have already explained. It was the GPS application that drained the battery, nothing else.
Just as a test try leaving it for as few hours running again and you will see.

battery drain
I do have the same effect. but I do not use GPS or wifi at all.
Sometimes it put the phone down, screen disabled and fully charged. No application running.
Next morning the battery is dead.
It happens about once every two weeks without any sign why...
My solution: I bought a desktop charger which is able to charge a second battery and simply exchange it, when this happens again.
Not ideal - but right now we seem to have to life with it.

do you have an old version of S2U2 or AE Button plus on your phone? And I have also read that batti used to cause drain problems... this might be the case with yours(?) if you have none of these installed then I am of not much help...

If u use Push email or active sync, Google sync Hotmail sync any Email sync on arrivel option ur battery will only last 5hours cause the phone is using mobile web at all times and constantly sending and recieving, turn it off an ur phone will last over 19hours with out charge... EG i turned my email sync off at 10am an the batt level was 60% didnt charge it till next day 11am when the batt levels drop to 20%

Is your X1 fairly new?
I experienced exactly this issue about a week after I bought my X1. No apparent reason for it, but the battery just drained right out overnight.
Strangely, the same thing happend about a week after I bought a HTC Touch Pro.
In both instances it has happened only the one time. Since then things have been normal, or drains caused by known software issues (like the buggy version of S2U2).

As earlier suggested, I loaded the Wayfinder app, with its GPS active.
I tuned off the phone when the app was on screen.
Left it for 3 hours, and there was a noticeable drain of the battery.
Lets hope the new WM 6.5 improves Power Mgmt, and has a more elegant low power handling.

Do you have G-Alarm installed? My Battery gets drained very fast when I have this installed. I tried many different versions within the last few month, allways the same.

I experienced this last night for the first time with my X1. I left the X1 on the bedside table at 11:30 with 90% charge and was awakened by the battery low alarm at 6:30 am (not good).
The only thing that I noticed that was unusual was that my X1 had been connected to the PC with ActiveSync in the connected state. I shut down the PC and then unplugged the X1. In the morning after the battery low alarm I noticed that the phone thought it was still connected. I use SPB Phone Suite and it was still showing the Cradle profile. This would not change in the automatic mode so I had to reboot the phone. Everything has been fine since.
So ... I am wondering if ActiveSync can sometimes go crazy and drain the battery more quickly??

I have a faster draining battery since i installed g-alarm. can anyone confirm that?

In my case I dont have G-Alarm installed.

Well my battery is not draining that seriously. it's ok i guess.
But maybe you should try what is suggested in the last post of this thread:
http://www.xperiax1.net/forum/x1-problems-issues/2113-another-kind-battery-drain.html

Deep discharge my X1-battery just almost doubled my battery life in average

Seafal said:
I have a faster draining battery since i installed g-alarm. can anyone confirm that?
Click to expand...
Click to collapse
I have been using G-Alarm since the very moment I got my X1 and there is no noticeable battery drain. Lasts 3-4days.

Is 85mA normal current usage when idle?

I've had my Touch HD a couple of weeks now and I absolutely love it. My primary use of it is as a pocket pc and the phone comes in as a handy extra.
However, I seem to be getting battery usage problems that other people have been experiencing and I have a few questions.
I'm using Powerguard and AEButton Plus to show me my power usage. Both report about 85mA when no applications are running and no data connections are in use. I have my backlight turned down pretty low, activesync closed down and I don't use AEButton Plus to turn WiFi on and off as I don't use WiFi. Is 85mA about right? I've no idea what it is while it's in standby.
Yesterday I used my Touch HD a lot, playing about with GPS, surfing etc and by the end of the day I had over 60% charge left. Today, after a full charge overnight from the mains, I have used my Touch HD very much less but I'm already down to 56%. Powerguard still reports about 85mA when my pocket pc is idle but I've been able to watch the percentage power drop every minute or so. Then it would speed up and at other times slow down again.
Why would the battery drain so much faster today with the same or less power being drawn? AEButton Plus reports an uptime of only 1.5 hours yet almost half the battery is used up.
The battery is only a couple of weeks old. I cycled it about three times when I got it, ie letting it run down completely and then charging it back fully. I'm not charging it in the cradle but directly off the mains overnight. Has the battery lost it's calibration so quickly?
If I have applications or devices drawing more power, shouldn't I see that in a higher level current usage. When I have GPS on it goes up to about 300mA so I'm assuming that at 85mA there is nothing else running that shouldn't be running.
I have spent a lot of time installing all the applications etc onto my Touch HD and so only want to hard reset as a very last resort. I really need to be able to use my pocket pc and get on with my life now, but I can't if I'm worrying about whether it will last through a phone call.
I've got a spare battery on order, but I would really like find out why my battery is draining so much more quickly now.
Please help. I love my Touch HD. It does everything that I want and it's gorgeous, but I need it's battery to last at least a day.
Thanks,
Teresa

Sorry, I should also add that I'm using the stock V1.56 ROM.
Teresa

This is getting weird now. I've now started to use my Touch HD more. I made a 20 minute phone call, ran TomTom for a few minutes and now I've had google maps running with GPS for about half an hour and I've only lost a few percent. My power is at 50%. It seems that the more power I draw from the battery, the more slowly it goes down.
Do I need to cycle my battery again? I'm worried about doing this too often as it stresses the battery and shortens it's life.
Teresa

batt and batt % are not a reliable thing
you can't really rely very much on it
and it's never linearly

I know the battery usage isn't linear and it tends to speed up as more power is used. However, the pocket pc uses the value to decide when to shut down. My Touch HD has just run out of power with an uptime of only 3 hours and 50 minutes and it was fully charged only sixteen hours ago. This does not leave me confident in being able to use it for a whole day.
What can I do to improve the battery life? I have an HP iPAQ hx4700 with a four year old battery in it that still lasts ages and ages. I don't think I'll get anywhere near as long a life from my Touch HD battery. I only need it to last a day between charges with an uptime of at least six hours or more. As soon as the capacity of this battery starts to degrade, it will be useless as it's only just useful now.
Teresa

get dotfreds taskmanager too see what processesvare are running inthe background.
use advanced config to enable the power saving features

Thanks for the suggestions. I've already spent ages searching these forums so I have been using dotfreds taskmanager and all I see is idle running at about 80% because the other 20% is being used by the task manager. AEButton plus only uses about .1% every few seconds. Is 85mA usage high for idle?
I'll try advanced config to turn on the powersaving features.
I need my pocket pc and phone all day to day as I'm out and won't be able to recharge it after this morning. I just hope it lasts.
Teresa

Hi,
In this forum I saw many tips how to reduce the battery usage. You could search those.
For example turn off 'Receive all incoming beams' in Setting/Connections/Beam.
You also can flash one of the cooked ROMs that present here. I use onkolog's Lite ROM and battery usage is very low (10-20% per day with moderate usage).

Thanks, but turning off incoming beams is one of the first things I did. I think I've followed most of the tips I've found and I've even managed to stop that pesky activesync from keeping on coming back.
I'm not running Powerguard today and I'll just use my Touch HD normally and see how it goes.
I don't want to flash a cooked rom just yet as I've never done that before, but I'll try that eventually if my battery usage continues to be so poor. I have a lot of applications installed on my Touch HD, so building it takes a very long time. I use it for everything, from shopping lists, access databases, reading ebooks, playing games, satnav to plain old diary. These are all applications that ran quite happily on my old pocket pc without undue battery usage. The only main difference on my Touch HD is that I'm using TFDetacher so that I can still have my old Today screen as well as Touch Flo.

Hi, only if you run out of solutions, you could look at this thread for an extra battery (I've not tried it myself but it increases your battery life by 200%)
http://forum.xda-developers.com/showthread.php?t=529673

Thanks for that, smeddy. This looks like a really interesting product. I will look out for what people say about it.
My battery seems to be much better so far today. I'm still on 100% with an uptime of 25 minutes since I charged it up over four hours ago.

85mA while idling is reasonable if you have backlight level at >50%.
68mA is the lowest I've seen at minimal backlight level on my HD.

Hey TeresaTT,
Something I can tell you with a high degree of confidence is that you really cant trust the battery gauge on the HD that much, either under idle conditions or with higher battery loading. And just try doing a reset and I bet that it'll will come up on a different % value after you reboot!
Another thing is that battery consumption is quite dependant on not only how you configure various functions of your phone but also what ROM you use. My present ROM seems to be noticeable more battery effecient than many of the ROMs I tried before, and most especially the stock ROM that came with the phone, and the stock ROM I initially upgraded to.
EDIT:
Cant comment on the battery current consumptions as I've never felt the need to measure them.
LoopyLoo

Thanks for the info. My Touch HD draws 85mA with the backlight set pretty low, just one point off the lowest. Therefore it seems that the usage is pretty high. I'll have to look at other roms and try one or two, although I need to wait until I've got some more time free. I've already spent hours and hours on my Touch HD, but I do love it. It's a huge upgrade from my old HP iPAQ hx700.

Before my battery would last about a day but after flashing to my current custom ROM now lasts 2 to 3 days with moderate usage. If left on standy idle the % doesn't seem to go down. Probably last a week doing nothing...
I believe the official ROM I had before was buggy with power management i.e. even when on standby with screen off, sometimes it may not cut off power sucking features like WIFI, gprs/hsdpa, bluetooth etc.

Thanks for that ez2remember. It looks like my Touch HD is behaving normally with a stock ROM. I've had a quick look at the ROM forum and it almost looks like a foreign language. Even the dummies guide is a bit foreign with HSPL, USPL etc. Then I have to pick which ROM to use and hope it's stable and all my applocations work. I can see that this is going to take quite a bit of time for me to research. I'm fairly technical so I'll get there in the end.

Yes I agree flashing can seem a bit daunting. This is my first real WM device. I've played with one briefly before so found the conversion slightly complicated. I came from s60 devices. Dummies and step-by-step guides on s60 were really easy to follow. I just think WM users are far more technical so instructions seems more complicated than it actually is.
It's just a matter of getting the latest HSPL onto your device (one time affair) then you can flash as many custom ROMs as you want.

You can use nue ClockSpeed 1.3 to manage the clock of the processor.
www.nuerom.com
Also, Pocket Shield will switch off screen wile talking, and a lot of functions I don't use.

My garmin gps shut down few days ago and i had to use garmin in my HD for around 1.5hrs....
I think i lost only around 20-30% charge.
My battery lasts atleast 2 days with wifi on all the time ( wifi auto off in standby mode.)
I do make few calls and sms

[Sol] Maybe: Sdcard Powermanagement disabled gives me more batterylife

I have noticed one thing yesterday.
From the moment i had my Rhodium (2weeks ago) i installed advanced Config 3.3 on my Rhodium.
From the start i had the "SDcard power management" enabled.
Since then i had a terrible battery life, 20% loss in 3 hours so at the end of the day my battery was empty.
And did not blame the powermanagement of this.
Trying to locate the power loss i used acbPowermeter.
After two weeks i came till the conclusion that there was nothing which drains my battery.
True out the day i use my phone for just a couple off calls and sms messages.
3G is disabled because the poor reception.
Also auto weahter updates every 2 hours and my mail is also checked every 1 hour.
Bluetooth is always discoverble which does not effect battery drain more then bleutooth off.
Activesync is killed and Opera does realy close and used the nopushInternet tweak.
So after testing al these and more.
Even how much those apps uses de proc.
I had to try one more thing, disable the SDcard power management in Advanced Config 3.3.
And today that config change made me verry happy.
Normaly i start working at 5am and work till 3pm in that time the battery has lost 60% power.
And today i was supprised my Pro II had 91% power left.
So i just want to let you know that in my case the SDcard Power management f*****k up my batterylife.
Specs
HTC Touch Pro II
ROM-Vers: 1.19.404.1 (51489) NLD
ROM-Date: 06/22/09
Radio-Vers: 3.44.25.27
Engergy Info Tab says at 90% battery life:
Last fully charged
23:24 Thu 18aug 2009
Standby time:
18 hours and 40 minutes
Speak time:
1 hour and 4 minutes
Device Use:
5 hours and 4 minutes
I believe these specs aren't that bad because before i disabled the power management my battery would be emty in 16 hours.
So i hope that my findings will help you all.

Bluetooth is always discoverble which does not effect battery drain more then bleutooth off.
Click to expand...
Click to collapse
Are you sure about that?
in most devices bt in descovery mode drains the hell out of the battery!
I always have my BT ON only, because thats all you need once you devices have been paired.

faria said:
Are you sure about that?
in most devices bt in descovery mode drains the hell out of the battery!
I always have my BT ON only, because thats all you need once you devices have been paired.
Click to expand...
Click to collapse
Hey Faria,
First off all i still love your rom on my old wiza200.
Back ontopic:
As i found on the internet and my findings with the discoverble mode that it is not on all the time.
It only opens the BT pairing when a device want to pair.
After that it closes and acts as BT on mode.
BT does not sends it signal all the time.
But correct my if i am wrong
edit
If i may believe AcbPowerMeter the power drain with BT on and BT discoverble is nill and BT off against BT on is that it isn't a power drainer

Hey Faria,
First off all i still love your rom on my old wiza200.
Back ontopic:
Click to expand...
Click to collapse
Wow!
As i found on the internet and my findings with the discoverble mode that it is not on all the time.
It only opens the BT pairing when a device want to pair.
After that it closes and acts as BT on mode.
BT does not sends it signal all the time.
But correct my if i am wrong
edit
If i may believe AcbPowerMeter the power drain with BT on and BT discoverble is nill and BT off against BT on is that it isn't a power drainer
Click to expand...
Click to collapse
ha.. you mean you have it in a timed descovery mode. if that is the case then it is correct.
if i m not mistaking bt on only, drains less than 1% in 24 hours of the battery.

I get 7 hours of battery life and I'm a heavy user. I already have that option disabled. I need to improve this battery!!!

incredible!! your results are great!! any other detailed report, to clarify things a bit?? it would be interesting to have some data to elaborate some statistics and see what we come up with
in your fisrt post, you mean that you achieved the written results at the cost of only 10% battery life, or have I misunderstood it all??? if it's correct, wow!! °_° you have a nuclear battery! from 100% (and powermanagement enabled) I usually achieve 24 to 26 standby hours, 30min calls, 5 hours device usage (most of them connected on 3g). no bt nor auto connections of any kind.
thinking about it, it sounds a bit strange though: the OS is basically the same since quite a long time, and so the management of sd power (I think). so why would it do good (if enabled) on many devices, and not on TP2, having on the contrary such a bad impact on battery life?? I hope my question is clear enough!
since I'm no expert or programmer, I'd really like to have a little explanation by someone who really knows how these things work!
thanks a lot for the contribution, everything that may improve battery life even just a minute is super appreciated! best regards!

faria said:
Wow!
ha.. you mean you have it in a timed descovery mode. if that is the case then it is correct.
if i m not mistaking bt on only, drains less than 1% in 24 hours of the battery.
Click to expand...
Click to collapse
Nope my is discoverble the whole time.
About the 1% drain i am not sure, but after i am done with testing we will see how much it drains our battery.
HeavyComponent said:
I get 7 hours of battery life and I'm a heavy user. I already have that option disabled. I need to improve this battery!!!
Click to expand...
Click to collapse
I am still testing how to improve our battery and be able to do something with it.
cyberpunk627 said:
incredible!! your results are great!! any other detailed report, to clarify things a bit?? it would be interesting to have some data to elaborate some statistics and see what we come up with
in your fisrt post, you mean that you achieved the written results at the cost of only 10% battery life, or have I misunderstood it all??? if it's correct, wow!! °_° you have a nuclear battery! from 100% (and powermanagement enabled) I usually achieve 24 to 26 standby hours, 30min calls, 5 hours device usage (most of them connected on 3g). no bt nor auto connections of any kind.
thinking about it, it sounds a bit strange though: the OS is basically the same since quite a long time, and so the management of sd power (I think). so why would it do good (if enabled) on many devices, and not on TP2, having on the contrary such a bad impact on battery life?? I hope my question is clear enough!
since I'm no expert or programmer, I'd really like to have a little explanation by someone who really knows how these things work!
thanks a lot for the contribution, everything that may improve battery life even just a minute is super appreciated! best regards!
Click to expand...
Click to collapse
I expect that my testing will be done with in two or three weeks.
Because i want to exclude every possible power drain and drain the battery till its empty to besure how long it takes.
Althought my battery isn't empty jet i will post some screens of the actual battery state.
And later this weekend when the battery is empty i will also post data of my findings.
With my tests i hope to save power and still be able to use the Pro II as its ment to be.
Or else it will be useless expansive plastic brick after 7hours of use time.
At this moment my battery has 43% power left.
And the last full charge was at 4am on 20-08-2009.
So its standby for a little over 54 hours. (current time 11:30am)
In my attached screen it say standby time 49 hours.
I do not know if this standby indication is the actual standby or what is left.
I mean that my Pro still has 49 hours to go.
Think there is a bug in de energy tab, but can not find anything on the NET.
This is what i have done the last 54 hours.
Why is tell you this? althought i am not an heavy user like many people here.
It maybe can help to compare my use with all you people.
- 4am 20-08-09: woke up and disconected my phone from the charger.
- 5am got to work, at work no provider connection so phone is searching for connection for little over 8 hours.
- 3pm got home, so now and then check the weather, play arround with new appz, had to put is some new appointments and contacts.
- Tryed some new reg tweaks, and took some pictures and make a short movie (1.39min) off the awefull weather over here.
- 10pm got to bed with 73% power left in my battery.
- Same story: 4am woke up and got to work to arrive at home at 3 pm.
- Did some checking on the weahter app, added a new contact, tryed some g-sensor games.
- And made two phone call about 10 minutes (not much for the last two days)
- Also send about 12 sms and 2 emails.
- Got to bed at 11pm and woke up at 10am with 43% power left in my battery.
- My mail is checked every two hours, no pushmail by the way
- I used the alarm function as my wake up call
I will let the battery drain completly and try some other possible power savers later this week.
And will post my findings over here including some findings i made with acbpowermeter and what effects background services or programms have on the battery.
At this moment i think i have charge my battery tomorrow morning if it does not shut it self off because of an empty battery over night.
If 4 days standby time is possible with little use then i'm not happy with the power drain.
Why: my wifes Omnia i900 is not used for over 3days (Backup phone at the moment) and has a been standby for 4,5 days and has 50% power left.
Okay i know i can not compare these two devices.
Because there different and we do not use the devices the same.
Later this weekend i will post what i have done and post some data and statistics.
And i will post which changes i made for my new tests week.
What i have done so far,
Energy settings:
-screenlight in battery power is full
-screen goes off after 1 minute
-device goes off after 2 minutes
Phone settings:
-band settings are set both to auto
Bluetooth:
-is set to discoverble
WiFi:
-Did not use it this test
Commanager
-Do not know whoe made it.
but is use the new commanger to quickly switch between 3G on or off.
Because in my area there is a poor reception of 3G
So currently 3G it is switched off
Advanced Config:
-sdcard powermanagment is disabled
-also the others mmc, nand, sim, async, pptp,l2pt
-Data connetions (gprs auto attach) disabled
-miscellaneous (auto daylight savings) disabled
Appz & tweaks
-manilla nopushinternet
-Opera wil close instead of minimize
-Activesync is killed by faking a server
-No2chem 1% battery bar
-Zuinigerijder TouchLockPro
-XDA-Developers GPRS 1 minute auto detechment
Rhodium settings tool:
-Auto rotation is off
-Power special tweak is switched off (next week testing it switched on)
So next week more data and background info

waiting to see the final results!!
btw, what is "power special trick"?? never heard of that.. sounds useful
the more minute of battery life we can obtain, the better!

how do you disable the sd card power management? i want to give this a try. also this is my first post and id like to say this site has alot of useful information!

any updates

I tried disabling and...well maybe there is some little improvement here, but I don't know if it's really because of this or if it's because of different patterns of usage during the days.. mine varies a lot.
as a raw comparison, it went from almost 60hrs standby and 5 of usage to almost 75 and 6 /6.5. both test with phone always on on 3g network, no data connections, no wifi, bt and such. just simple usage (documents reading, editing, tweaking, mostly PIM related tasks.
again, I'm not really sure it's power management related.. maybe V6Maniac did a more rigid comparison, mine's not worth it
waiting for updates
cheers

Palringo
Guys,
I am not a techie so dont flame me if what I say proves to be wrong.
When I installed cleanRAM and when went to the Customized Process List, I saw Palringo as one of the running processes. I remembered using Palringo on the day I installed it, but never after that, which is at least 10 days before. And it stayed there even after a day. Hence I decided to remove the installation and the process is gone now.
Now my batter is really good!!! I had a full charge by 6 pm yesterday and now it is holding at 84%. I did connect to Internet through WiFi for about 20 to 30 mins for skype call, updated weather and stock. Yet it is holding at 84%.
Let me observe it for few more days and let me come back to you if I find anything interesting.

it is known that certain programs are really nasty battery drainer. there's a recent thread somewhere reporting that a (maybe older( version of ESET mobile antivirus did the same. so we have another entry for the black list of abnormal battery drainer
thanks a lot!

Unhappy with your battery life? Fix is here!

Hi everyone,
I have had my Galaxy S for a month now, I have been very unhappy with my battery life, so I thought, I gotta to fix without compromising perfomance.
I found it!
My battery life during this 1 month period was utter crap, battery used drained from 100% in about 10-12 hours on average.
At the time I was running the latest FWs (I kept updating as the FWs came out) with Mimocans EXT4 fix.
I was with lowest brightness setting, running on 2G without any screen animations.
So heres the fix:
Install SetCPU 2.02, make sure to apply on boot, make the minimum speed 100mhz and the top 800mhz.
This ensures the phone doesn't ever go to 1ghz but that the performance is never compromised (even when playing games, videos, apps).
Because I have the Mimocans fix, everything is smooth and battery life goes down very slowly!
Heres the stats of my battery right now:
Battery Level 70%
21h 40m 25s secs since unplugged
Display 37%
Phone Idle 27%
Cell standby 21%
Voice calls 7%
Android System 4%
Internet 2%
Android OS 2%
You can give this guide a go, sorry if it doesn't work, just trying to help.
Regards,
Azazin!

azazin said:
Hi everyone,
I have had my Galaxy S for a month now, I have been very unhappy with my battery life, so I thought, I gotta to fix without compromising perfomance.
I found it!
My battery life during this 1 month period was utter crap, battery used drained from 100% in about 10-12 hours on average.
At the time I was running the latest FWs (I kept updating as the FWs came out) with Mimocans EXT4 fix.
I was with lowest brightness setting, running on 2G without any screen animations.
So heres the fix:
Install SetCPU 2.02, make sure to apply on boot, make the minimum speed 100mhz and the top 800mhz.
This ensures the phone doesn't ever go to 1ghz but that the performance is never compromised (even when playing games, videos, apps).
Because I have the Mimocans fix, everything is smooth and battery life goes down very slowly!
Heres the stats of my battery right now:
Battery Level 70%
21h 40m 25s secs since unplugged
Display 37%
Phone Idle 27%
Cell standby 21%
Voice calls 7%
Android System 4%
Internet 2%
Android OS 2%
You can give this guide a go, sorry if it doesn't work, just trying to help.
Regards,
Azazin!
Click to expand...
Click to collapse
Please update with display time, phone idle time, standby time and voice call time. Without it these are a bit useless, these don't seem far from my stats when I use the display for +/- 1 hour.

alovell83 said:
Please update with display time, phone idle time, standby time and voice call time. Without it these are a bit useless, these don't seem far from my stats when I use the display for +/- 1 hour.
Click to expand...
Click to collapse
I have the percentages up in the OP.
This guide isn't just for turning crap battery life to good, it's also for people to extend their battery life if they already have a decent one.
Following the underclock to 800mhz my phone can last this long, compared to before when it used to last 10-12 hours with same usage!

azazin said:
I have the percentages up in the OP.
This guide isn't just for turning crap battery life to good, it's also for people to extend their battery life if they already have a decent one.
Following the underclock to 800mhz my phone can last this long, compared to before when it used to last 10-12 hours with same usage!
Click to expand...
Click to collapse
The percentages stand out, thanks, I saw them. Again, they are a bit meaningless without the time used. If you don't use your phone for 24 hours you should lose maybe 5% with sync off.
So, please, click on "display" and report the time that the display has been on, repeat for the other usage categories, other people will ask for this same information. I don't know if you didn't know how to do that or if you are witholding the information, hopefully it's just the former. I understand that, perhaps, you are doubling your battery life, but depending on the way we use our phones, relative to the way you use your phone we can see better or worse results. Doing this will allow us to know how much you use your phone and for what purpose, so we can make personal judgments about its merits to our usage.
TIA

This may fix the issue but it's merely a patch to cover up the wound. From my experiments I've found that in most cases the problems are related to the phone never entering sleep-mode. If you have bad battery life, please do the following:
0. Make sure you phone has been running on battery power for a while, usually a day with only 20% battery left is a good place.
1. Type *#*#4636#*#*
2. Go to Battery History
3. Other usage and "Since last unplugged"
4. Check the "Running" bar. Generally, if this is over 60% something is wrong.
5. Go to partial wake
6. Check if there's some application (e.g. Facebook) that has a high partial wake percentage. This is bad. System should be on top on most systems.
So, do you have the signs of something being wrong? Fear not! Usually this is due to a program or service misbehaving. I had bismal battery life (about 15 hours, just check the other thread for several of my posts), and then I uninstalled "Weather from Yr". I also let my phone discharge completely, then charge TURNED OFF over night. I then disabled auto brightness and "power saving" in the display. Yes, I disabled the power saving feature, and my battery life went sky high. Now I have about 2 days of moderate use (1h 30 min on) and about 1 day with heavy use. Letting any application run while the screen is off using partial wake KILLS my battery.
Unfortunatley, I didn't follow proper scientific approach when conducting my experiments, so I can't say which of the three things (uninstall weather from yr, complete discharge/charge cycle or turning off power saving) that did it for me, but it's worth a shot if you haven't rooted your phone. Post back with results.

alovell83 said:
The percentages stand out, thanks, I saw them. Again, they are a bit meaningless without the time used. If you don't use your phone for 24 hours you should lose maybe 5% with sync off.
So, please, click on "display" and report the time that the display has been on, repeat for the other usage categories, other people will ask for this same information. I don't know if you didn't know how to do that or if you are witholding the information, hopefully it's just the former. I understand that, perhaps, you are doubling your battery life, but depending on the way we use our phones, relative to the way you use your phone we can see better or worse results. Doing this will allow us to know how much you use your phone and for what purpose, so we can make personal judgments about its merits to our usage.
TIA
Click to expand...
Click to collapse
Hi,
Oh okay lol, no problem.
Display: 1h 22m 8s.
Phone idle: 20h 51m 22s
Cell standby: 12h 12m 52s
It doesn't look like I have used it much but during the time the display has been on, I have either been:
Playing games,
Texting,
Twitter,
Or Internet.
It doesn't look like much, but I recommend you try this and post results before and after

dagingaa said:
This may fix the issue but it's merely a patch to cover up the wound. From my experiments I've found that in most cases the problems are related to the phone never entering sleep-mode. If you have bad battery life, please do the following:
0. Make sure you phone has been running on battery power for a while, usually a day with only 20% battery left is a good place.
1. Type *#*#4636#*#*
2. Go to Battery History
3. Other usage and "Since last unplugged"
4. Check the "Running" bar. Generally, if this is over 60% something is wrong.
5. Go to partial wake
6. Check if there's some application (e.g. Facebook) that has a high partial wake percentage. This is bad. System should be on top on most systems.
So, do you have the signs of something being wrong? Fear not! Usually this is due to a program or service misbehaving. I had bismal battery life (about 15 hours, just check the other thread for several of my posts), and then I uninstalled "Weather from Yr". I also let my phone discharge completely, then charge TURNED OFF over night. I then disabled auto brightness and "power saving" in the display. Yes, I disabled the power saving feature, and my battery life went sky high. Now I have about 2 days of moderate use (1h 30 min on) and about 1 day with heavy use. Letting any application run while the screen is off using partial wake KILLS my battery.
Unfortunatley, I didn't follow proper scientific approach when conducting my experiments, so I can't say which of the three things (uninstall weather from yr, complete discharge/charge cycle or turning off power saving) that did it for me, but it's worth a shot if you haven't rooted your phone. Post back with results.
Click to expand...
Click to collapse
2 things:
1) the phone number thing is pretty cool, in the past I've used "Spare Parts" for identical and a bit more information. I encourage people to use one or the other.
2) You can still fix the unscientific nature of your experiment by a factor of 1/3. You can turn power saving back on, and I'll try it. Also, I'll assume that 1 charge wouldn't make a world of difference, so I think that could've added a few minutes to your phone life (more than charging with the phone on) but maybe someone with actual technical knowledge can chime in.
As for any program running in the background, I had a similar situation where I was going from losing about 30% in a day, similar to the OP, while using the phone, and hence the display, for about an hour at work. I also, always preferred to leave the phone off the charger overnight, so I'd have been unplugged for 16+ hours. One day I allowed 3 things to run to check both battery and 3G usage (I have 500mb per month until I decide to change my plan, probably waiting for the new deal thats been announced for unlimited data for an extra 10 bucks sometime this month). So, I ran:
Sync
3G data monitor (To test if I would go over what I'd use too much data from my allotment, refresh every 30 mins IIRC)
ATK (to kill tasks, hoping they'd use less of my precious bandwidth)
This 2 tasks plus sync just CRUSHED my battery, by the first time I turned on the screen I saw more than 50% drain from my battery, probably around lunchtime (probably 3.5 hours from the start of work). I turned off all 3 and, like you, I haven't conducted a scientific experiment since.

I tried something similar with overclock widget, but I had the impression that underclocking made the SGS really unstable. It freezed completely like 3-4 times a day. After uninstalling overclockwidget the device didn't crash anymore.
So how are the longterm effects (say, 1 week) of setcpu?

If anything I'd OC my phone, not the other way around.

XQC said:
I tried something similar with overclock widget, but I had the impression that underclocking made the SGS really unstable. It freezed completely like 3-4 times a day. After uninstalling overclockwidget the device didn't crash anymore.
So how are the longterm effects (say, 1 week) of setcpu?
Click to expand...
Click to collapse
The software probably isn't optimized for your usage scenario, I don't think an underclock, if done right, should be that bad, OC on the other hand...
ShezUK said:
If anything I'd OC my phone, not the other way around.
Click to expand...
Click to collapse
I'm in the same boat, screen uses 80%+ of battery when the screen is on, as long as I'm not wasting battery when the screen is off and processes aren't running I have excess battery life, not to mention a spare battery, which I'd like to get more use out of if I could better my experience.

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crap battery life
---------- Post added at 04:24 PM ---------- Previous post was at 04:22 PM ----------
crap battery life

Unusually high battery drain in deep sleep with just GSM on

After freezing some twenty applications with Titanium Backup, I finally got this phone to properly enter deep sleep. Here is a quick demo:
(I'm sorry for the images' quality, it's ScreenFilter in effect)
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I only have the HD2 to compare, which, either with WM6.5 or Android (CM7 flavour), reported, with its builtin battery chip, 4mA of drain to stay connected to the GSM carrier.
Surely enough, since silly Samsung doesn't like to use decent battery controller chips in their 800USD flagship phones, which any HTC device has, the estimates from Battery Monitor Widget, as, per se, estimates, so I cannot really say the numbers are exact, nor I have a definite idea of how they are calculated.
But still:
And, more in detail:
(yes, I know I could've copy/pasted the txt log in here, but surely a screenshot is nicer to look at )
I shamelessly forgot to take a shot of the Android stock battery usage screen, to which I actually look quite seldom; to my defense though, all these screenshots have been taken one after the other, so refer to the same moment; I had the phone charged, then unplugged it and reset the timer on CPUspy, WiFi stayed on just for a while, then disabled; no GPS, no BT, "GSM Only" selected in mobile networks.
I have found a weird behaviour: the drain is 2mA (according to BMW estimates) for quite a while right after the battery is charged. When you happen to actually "use" the phone for a while, the deep sleep drain instead, as estimated, skyrockets up to 30-40mA, to slowly go down again, but never quite low as the drain on my HD2. In the attached screenshots, it stabilized to 17mA, which is still 4 times the comparison of 4mA for the HTC.
A silly deduction: this must not depend on the kernel nor the ROM, since the deep sleep state has the CPU totally inactive, but is there a "radio firmware" that changes this behaviour?
Most importantly, what are your deep sleep mA readings with Battery Monitor Widget?
On a side note, I briefly connected the Note to my PC via USB to copy over the screencaps, and now after a short USB charge, BMW is reporting 2mA again...

How about sharing what apps you froze?

Without giving a full list (that would be dispersive and especially I would have to write it by hand which is annoying ) I suppose you can start with the obvious, all samsung apps, especially the updaters, and those that have a huge internet background activity (freezing IM+ in my case helped, but that sucks if you use chats a lot... I dont), then pass onto the tricky ones you would never suspect, like Network Location and Google Maps/Google Streets
If it doesn't solve your problem let me know, I will go and compile a list, but keep in mind that at first I just uninstalled system apps from Titanium, so the frozen list will be uncomplete of those uninstalled apps.
Quick update: for just this night, I tried leaving the phone on in airplane mode: 8mA drain just to be in connection-less standby!! That's ridiculous, it drains double with no connection active whatsoever, than what the HD2 needs to keep the GSM network connected. Re-enabled the GSM this morning, went to 17mA, so I suppose the 2mA that I see right after charging are, as suspected, just an artifact of BMW estimates.
This resulted in 4% over 7 hours (4% of a 2500mAh battery) in airplane mode, HD2 under WM drained 3-4% over 8 hours nights with GSM on (on a 1230mAh battery).
This phone does have a ****ty energy management.

ephestione said:
This resulted in 4% over 7 hours (4% of a 2500mAh battery) in airplane mode, HD2 under WM drained 3-4% over 8 hours nights with GSM on (on a 1230mAh battery).
Click to expand...
Click to collapse
I left the note (stock, not rooted) on for about 9 hours this night with 4% battery. This morning it had 1% left. To force it to shut down i opened wifi, read my mails and watched 2 songs on youtube.
All i did for the night was to set it to GSM only mode, close all active apps and clear the RAM from the build in task manager. I haven't experienced samsung apps keeping the phone awake yet.

Hi Bassarnis, and thank you for your report
Your experience may lead to believe it actually drained "just" 3% overnight, yet, with CM7 on my HD2 I had the strangest things happen especially when battery was (reportedly) almost drained.
Android (with its silly battery management) would tell me the phone was at 5%, and I just went on using it until 1%; even doing the nastiest stuff to drain that last 1% it took a notable while before the phone shutted down.
Turns out the battery wasn't really drained, but the phone told me it was, because of the useless, illogic, un-asked-for use of "battery statistics", combined with the fact that this OS thinks a battery is depleted when the dV is still 3600mV-ish (LiIon can stand to be discharged up to 3V with no damage).
In this case your leftover 1% could very well mean, in reality, a 6-7% ;D
I would love to know how much %age your phone drains overnight with GSM, starting from a good charge

ephestione said:
Hi Bassarnis, and thank you for your report
Your experience may lead to believe it actually drained "just" 3% overnight, yet, with CM7 on my HD2 I had the strangest things happen especially when battery was (reportedly) almost drained.
Android (with its silly battery management) would tell me the phone was at 5%, and I just went on using it until 1%; even doing the nastiest stuff to drain that last 1% it took a notable while before the phone shutted down.
Turns out the battery wasn't really drained, but the phone told me it was, because of the useless, illogic, un-asked-for use of "battery statistics", combined with the fact that this OS thinks a battery is depleted when the dV is still 3600mV-ish (LiIon can stand to be discharged up to 3V with no damage).
In this case your leftover 1% could very well mean, in reality, a 6-7% ;D
I would love to know how much %age your phone drains overnight with GSM, starting from a good charge
Click to expand...
Click to collapse
I charge my phone while its off. I know the effect you are describing. It could well mean that the battery wasn't properly charged the first few times, leading to the last 1% = 5%.
I don't guarantee that my results are accurate, since bought the Note 48 hours ago. When i bought it, i used it until the battery depleted and then charged it to full while it was off. Now its the 3rd time i charge it and i believe the percentages will be more accurate from now on.
Will try tonight and let you know tommorow

Thank you for your interest in this matter

ephestione said:
Thank you for your interest in this matter
Click to expand...
Click to collapse
Here are the results:
As soon as the indicator showed 5% battery left at around 23:00, closed all apps via the build in task manager and cleared the ram. (GPS/WI-FI/Auto-synch/Data = off, network set to GSM only)
Now at 7:00 there is 3% left after 8 hours of sleep time. That is 2% more than the last time. Currently the phone is on it's 4th charge circle using the method posted above (letting the phone shut down by itself, then charging it while off till 100%). I 'll probably do one more circle and then start charging the phone whenever.

after reading this thread was a bit worried so did a test last night,after a full charge from 1 am until 9am with only gsm on it consumed just 1%.
so no complains here on my wife's galaxy tab 10.1 she had the same draining problem,but after disabling the GPS it was solved.

Apparently there is something terribly wrong with either my phone OR my software... are you both on stock ROMs? And which version of firmware?
Thank you!

Ive been getting more than 1% drop over 8hours since my SGS2 days.. so this is nothing new to me.. only my SGS1 could drop 1% every 9.5hrs of idle.

ephestione said:
Apparently there is something terribly wrong with either my phone OR my software... are you both on stock ROMs? And which version of firmware?
Thank you!
Click to expand...
Click to collapse
Stock 2.3.6 not rooted here. I believe that battery monitor widget you use keeps your phone awake. Did you check your wake times?

You know, I've thought about it very much, regarding BMW and possible interferences with wakelocks, since it has to update stats every 10 minutes after all... but it's still once in 10 minutes so I don't see how it can weight for so much.
Also, I had battery monitor widget since the phone was still on KJ4 and unrooted, fresh out of the box, without a SIM inside, and with logging every 5 minutes instead of 10.
You can compare the graphs of the battery drain (one day is equivalent to two columns):
Before pimping up the phone, stock KJ4:
After, with ExtraLite rom and Abyss Kernel:
I obviously studied reports from betterbatterystats and nothing big seems to come out from there, apart from three causes for wakelocks that I cannot really pinpoint to anything specific: ActivityManager-Launch and AlarmManager, time-wise, and ActivityManager-Sleep, count-wise.
Out of curiosity, I disabled BWM, to see if anything changes.
But I reckon this is some kind of Schrodinger's cat situation, because I can't know the battery current drain of the phone when BWM is not active, if I don't use BWM
My last resort is to restore the nandroid of KJ4 freshly cf-rooted and see from there
Thank you all again for the interest, and
@EarlZ
1% down overnight is scary, positively speaking. I was content with 3-4% with the HD2 and WM6.5.
I was on the 1% mark overnight (less actually) only with my iPaq 214 But then again, that was not a phone, and its standby was a proper standby. And it had a battery almost like the note's.