yashsingh1/xdaforums huggingface dataset:
[Galaxy S I9000 General] -Loom-:
In a serious german computer magazine was a big article recently about battery consumption with Android.

Here's the link for all german speaking people:

http://www.heise.de/mobil/artikel/T...ssere-Akkulaufzeit-unter-Android-1145579.html

Here's a Google Translation:

http://translate.google.com/transla...ssere-Akkulaufzeit-unter-Android-1145579.html

They measured the energy consumption on a Motorola Milestone.

These are the additional consumptions excluding the basic load of 6,4 mW in airplane mode:

GSM/EDGE Standby	11,6 mW

UMTS Standby	18,3 mW

WLAN Standby	7,8 mW

EGDE Download	853 mW

EGDE Upload	1179 mW

GSM-Telephoning	511 mW

UMTS Download	1349 mW

UMTS Upload	1410 mW

MP3 playing	160 mW

Video playing	1135 mW (excluding Display consumption)

UMTS-Telephoning	983 mW

Videorecording	1557 mW (excluding Display consumption)

Camera	934 mW (excluding Display consumption)

WLAN Download	1158 mW

Display	310 … 730 mW

Bluetooth receive	751 mW

WLAN Upload	479 mW

Bluetooth sending	487 mW

Bluetooth Standby	2,8 mW

GPS Standby	0,4 mW

GPS searching	550 mW

Notable here is the low energy consumption of WLAN and GPS in standby, and the relative high consumption of Bluetooth in standby.
[Galaxy S I9000 General] NISMOFO:
I forgot to mention you can set JD to leave data enabled during peak hours...like work hours or whatever you choose.
[Galaxy S I9000 General] Don MC:
I know about all the settings in JD. My peak hours are 24/7. I never sleep :)

JD just doesn't do it for me, I'm afraid.
[Galaxy S I9000 General] NISMOFO:
I'm actually interested in the 3000mAh battery if it could double my battery life. If you have anymore info, let me know. I'll have to judge on the size factor after seeing it. I guess I would have to ditch my Body Glove case then, huh...hmm.
[Galaxy S I9000 General] zurchpet:
3000mAh battery @ ultimate-mobiles.co.uk

IMO it's ugly...
[Galaxy S I9000 General] brack11:
To summarize I put a little list of battery life shorteners in the list here, would be great if someone could correct it:

1. Wifi and other communication services

2. Games

3. Background running apps

4. Brightness of screen

5. Apps that keep phone awake, like bookreaders

6. Kernel

7. GPS apps

8. Other that maybe some like to include

Those listedbare not apps, they are factors that reduce battery life. I sorted them in descending order, someone.may resort them.

Also could someone confirm the saying that stock Rome are generally better on battery than custom Rome?
[Galaxy S I9000 General] penfold:
what i have found

while investigating what was causing my dual process "android.process.acore" to constantly run at 100%, i eliminated facebook which is known to cause it because i don't have it installed and found that dialer apps like 'atakephone/dialer one' cause the spike.

The stock samsung app also causes it to run high but not as much, this can be verified by making a call and checking the spiked process, and then killing the 'phone apk' which should reset the 'acore' process back down to 0.

I tried this a few times. It does not always spike after making calls but often does.

The third party dialers always cause the 'acore' process to get stuck on 100%.

I don't know any of this means but i'm pretty sure it is not a desireable behaviour.

If anyone else could confirm this, or not, then it may be just me

(Stock JS3 with voodoo 5.2)
[Galaxy S I9000 General] JJEgan:
I know how to drain my battery over twelve hours .Tested a number of times .

Turn WiFi sleep to never do not use phone and have no strong WiFi signals near the phone . So presumably its wasting time and charge searching for out of range networks .

Normal twelve hour sleep drain is 2 - 4% .

Follow up next day to that post tested with WiFi off when screen off settings 12 hour drain 8% .

So Phone sleeps /at rest WiFi always on 12 hour drain 70% plus Same period WiFi off when screen off drain 4-8% JPY modem

jje
[Galaxy S I9000 General] melorib:
Where do you set that ???
[Galaxy S I9000 General] brack11:
Enable wifi, go to settings, wifi settings, press menu button and select advanced settings and there you find it
[Galaxy S I9000 General] melorib:
Thanks,

I set it to when screen turns off, is that right... :confused:

I think I done that before, somehow returned to never... :rolleyes:
[Galaxy S I9000 General] JJEgan:
I set it to when screen turns off, is that right

Yes this seems to be step one in battery life saving .

Looks to me as if sleep = wifi keeps searching for a connection drains battery . But if it is connected to a wifi = no search and no battery drain from that searching constantly .

jje
[Galaxy S I9000 General] melorib:
It should only be a problem when you forget wifi ON, right... :confused:
[Galaxy S I9000 General] NeedBackup:
hello

Hello, i got the same problem with jpy..i loose many battery and i do nothing with.

So i call the call center of samsung.And they said to me, get off the battery, for i give to us the imei, and S/n: .

And when i was puting again the battery, i got a message error of two applications.

It was one of free mobile, and another cardio trainer, that couldn't be load..

So maybe, the problem come from this application who are running with no ending..and drain my battery.

She tell me that it couldnt be froyo, and it was a problem of my sgs or the battery..

And what i can say too, i think i got many times "the indexer " that are running on too many times for nothing?its weird,

So i erase the two appli who couldnt load correctly..

And i will see if its better..

and i will repply for to tell you if its better.

sorry i havent a fluent expression..its not my foreign language. see you
[Galaxy S I9000 General] JJEgan:
It should only be a problem when you forget wifi ON, right.

The way it appears is lets say you are at home wifi on it does not need to search but turn that wifi off and it continually searches even when phone not in use .

Unless switched to off when screen goes off .

jje
[Galaxy S I9000 General] -Loom-:
Some days ago I measured the battery consumption during two nights.

First night - 7 hours - with WiFi always on: lost 4 %

Second night - 7 hours - with Wifi off when display off: lost 4%

So, for me it made absolutely no difference.

And I'm not quite sure what actually happens when WiFi is set to go off when the screen goes dark. Maybe it's switching to 3G instead, and this consuming the same if not more power as if Wifi would be on all the time.

Please correct me if this behaviour isn't true ...
[Galaxy S I9000 General] naenee:
There would be no difference if you are somewhere with a known signal it connects to, as it would not have to scan for longer than it takes to find that signal.

That is, provided you found yourself in such a location both nights and provided we accept that scanning before a connection is established, or while not connected but with wifi enabled, is the main culprit when looking at wifi battery consumption.
[Galaxy S I9000 General] borayman:
seems like the battery behaves very unstable after flashing a new rom?

some say it takes some days to get back to normal

some suggest doing the battery stat wipe, then discharge all the battery and charge to 100%

Actually I tried, but I didn't feel a big difference
[Galaxy S I9000 General] got-petrol:
im getting fed up with every body going on about batterys.... charge the phone up every night like i do and do some thing better with your life then seeing how long a battery lasts
[Galaxy S I9000 General] Don MC:
I have actually spent most of today testing that WiFi question. Seems my WLAN router isn't the best there is. It's signal is very weak. There's just about one place in the whole house where the signal can even be considered slightly good. That is on my bedside table. Mind you, that isn't even very close to the WLAN router. If I hold the phone right next to the router, the signal is as crappy as anywhere else. So somehow the inner walls amplify the signal so that the sweet spot seems to be right on top of my bedside table.

On the bedside table, the signal is often better than -50dBm, while it's worse than -60dBm everywhere else in the house.

Lying on that table, with WiFi, 3G and Push on, the battery drops 4% over 8 hours. That is 0,5%/hour. If I lay the phone on my computer desk (equally far from the router, but in the opposite direction), it eats 2%/hour.

Battery consumption with WiFi depends very much on the signal strength of your router. With a good signal you can save energy compared to 3G, but with a bad signal it can get worse. I'd say the line goes at somewhere around -50dBm. A much weaker signal than that will probably eat more battery than 3G.

EDIT: It was the router. It's WiFi is broken. Luckily, I had another one like it stowed away in a closet. Tested it and got 25dBm stronger signal all over. Too bad this other router has a broken ADSL modem. So now I have them both hooked up. One does the ADSL and the other one does WiFi.
[Galaxy S I9000 General] Don MC:
Wrong thread.
[Galaxy S I9000 General] SKeijmel:
i am on js3 and i have my phone now 5 days on and stil got 60+ battery. i have had my phone running 10 days before on other firmware. lol why are people having such problems i just do a few short calls a day. soon ill post a screenshot when i got 11 days or something hehe
[Galaxy S I9000 General] NISMOFO:
Thanks for the link...and you're right it is ugly. It's much thicker than I expected....it's like turning a piece of paper into a loaf of bread. The thickness of that case shown there looks like it would impact the camera maybe.

Thanks for the effort......I'll continue to be optimistic for other ideas.
[Galaxy S I9000 General] naenee:
I trust you are actually using your phone as a smartphone, otherwise there are phones out there for you which can last well over two months. Ofcourse they do not have android, but if what I suspect is the case, it would not matter in regards to your usage pattern.
[Galaxy S I9000 General] EarlZ:
I've gotten over this battery issue with the SGS, we just got used to our old smaller dumb phones that last upto 5 days. When I got a nokia 5800 initially I was pissed coz it would only last me 2~3days. My SGS does still last me the same amount but considering I get a bigger screen and can do a crap load more on the phone its a fair trade. But TBH all of the battery drain issues here are usually by the user aside from the wifi bug.
[Galaxy S I9000 General] melorib:
1% battery drain overnight... :cool:

I had almost given up, couldnt figure out what I changed to make it drain 1% per hour, idle, but yesterday, going through settings again, I found it...

Privacy / backup my data and automatic restore, I had this off to avoid google loading my phone with garbage, but last week turned it on and forgot...

Now only gingerbread might make me change the phone system again, I dont think it can get much better...
[Galaxy S I9000 General] naenee:
Thanks for that tip :)
[Galaxy S I9000 General] dhiru1602:
Any ideas if the Custom Kernels are draining the battery? I have been using the Stock JPY for a while without Root. It seems to be great in terms of battery. As soon as I flash the Hardcore Kernel, things start getting really worse.
[Galaxy S I9000 General] melorib:
It should be the opposite... :rolleyes:

What else did you change ?
[Galaxy S I9000 General] dhiru1602:
It was actually my friend's phone. We have exchanged our phones for couple of days. I was using my own battery. I felt that the battery drain was not so severe on his phone as it was on mine (Darky 9.0.2 with Hardcore K12Q 500). He had almost the same applications that I did.

The first day, I had been using the stock phone for about 3 Hours music and 1 hour browsing, 30 mins texts and 10 minutes calls. I had about 40% battery remaining. The next day, I had installed Hardcore K12Q using Odin on his phone. The battery ran out a lot quicker than I expected with a similar use.
[Galaxy S I9000 General] melorib:
Did you leave wifi on, or something else ?
[Galaxy S I9000 General] Septoman:
Hi Melorib,

Can you give some details about your phone configuration ? For me 1% drain overnight seems impossible.

I also have JS3. First time I updated from stock JP7 with Kies but the battery drainage was huge. I only manage 12-15 hours with very light usage.

I suspected the cause might be the fact that I did the update when the battery was at 80% and at first charging cycle(newly bought phone).

I tried to recalibrate the battery but no change.

I reflashed then JS3 with Odin and phone 100% charged and the battery life was improved a little bit. After 16 hours it is at 30% with light usage. I will wait for 3 recharging cycles but 1% drainage overnight seems impossible for me.

Can you tell me what settings do you have ? (screen brightness,screen timeout,normal/live wallpaper, widgets, GSM only, etc).
[Galaxy S I9000 General] melorib:
Besides what is in my post and my signature:

-I let battery drain all the way past 20%, and charge it all the way to 100%, it is supposed to increase battery life...

-Auto brightness and 2 min timeout, darkish wallpaper and only live widget is battery thing, not that it should matter during the night... ;)

-Wi-Fi, bluetooth and GPS off during the night, no 3G, Portuguese SIM in Norway would be too expensive, only use Wi-Fi to access internet...

-Calendar and contacts auto-sync with google, no gmail, no facebook on the phone...

-alarm I use phone...
[Galaxy S I9000 General] bokbacken:
Kernel with WIFI debug code deleted

Quote from hardcore:

And K12A is out.

K12A: 24-Dec-2010

- Added TUN.KO support (enable/disable from Tweaks)

- Removed kernel debug messages from touchscreen and keyboard

- Removed wifi roam test message

For all of you with WIFI problems, try it out to see if it solves any of the drainage, link to hardcore's kernels:

http://xdaforums.com/showthread.php?t=822756

His download site:

http://touristinparadise.blogspot.com/2010/11/samsung-galaxy-s-download-speedmod.html
[Galaxy S I9000 General] dhiru1602:
Till Yesterday I thought I was the only one who was facing Battery Drain. I was wrong. We will have to do something about it.
[Galaxy S I9000 General] NetCopAD:
This was it mate! Problem solved!

Wifi is working properly now! :D

I strongly advise everybody with wifi battery drain to upgrade to Hardcore's K12A!
[Galaxy S I9000 General] gtluis:
I don't think message logs have anything to do with battery performance...

This is insane, I'm loosing close to 1% per minute, only with wifi, I do not have 3g on my phone, and try to keep brightness at lowest, checked that no services or apps are running on background, seems like wifi alone is consuming all this much battery, I deactivated the get location based on wifi and my drainage seems to have lowered to about 5% every 5 minutes.... Which is still awful

I'm on newest doc rom v 6.2 jpy, no email set up beside from gmail, if I leave phone on stand by, my battery drainage stops completely, I loose about 1% having phone on stand by for 8 hours, only problem is when phone is on with wifi enabled.
[Galaxy S I9000 General] Toonio:
Battery snap is another handy tool to monitor battery discharge and charge cycles. It also has a small widget that shows percentage, voltage, estimated usage time etc.

It is not ad - I'm just found that this is some handy and informative tool to check the battery issues.

Also here is my screenshot from program to show first sharper teeth from bottom grabh - these are ebay batteries :P
[Galaxy S I9000 General] bokbacken:
Well, I can tell you there are many other out there, but I'm getting confident that we will at least eliminate most of the drainers, with some help that is.

Great new, please keep us updated on your battery life.

Have you installed any of the forensic tools? Must say I'm very pleased with SystemPanel, I bought the full version, I have learned a lot about what processes really eats power in the background. I highly recommend it.

I will check it out, the battery monitors doesn't really help us that much in finding the problems, but they do give us some nice graphs for comparison. SystemPanel has it all. This is not an ad either;)
[Galaxy S I9000 General] bokbacken:
WIFI bug(s)

Hardcore has made some other findings, has compiled a test addon that "downgrades" wifi firmware to DXJPA (there is also a file to upgrade again)

http://xdaforums.com/showpost.php?p=10056736&postcount=6706
[Galaxy S I9000 General] darkalchemist:
Going to try downgrading the wifi firmware with the K12a kernel and report back!
[Galaxy S I9000 General] dbraaker:
in my experience there are several things which can lead to battery issues.

the first is using a odin flashed firmware, whenever i used an unofficial release my battery life was much worse than on official updates via kies, i never had bugs like gallery sensor use etc. with a kies update, even if it was the same firmware flashed a different way. no idea why but i am sure it is not just imagination, battery lasts a lot longer if the firmware was flashed by the ugly and bloated kies package.

the second is the use of a lagfix. being on a stock rom via kies i have 2-4 days of battery, depending on use ofc. any lagfix, especially ext4 but jfs and ext2 aswell wont let me go for more than a day and a half, with hardcores kernel tweaks and ext4nj maybe 2. idle drain is not the main problem but the battery drops much more if i actively use the phone than on stock rfs. no idea why, i guess samsung had reasons not to use ext4 or a similar filesystem apart from legal constraints.

the third one is the wifi bug, whatever may be the cause.

the fourth one are crappy apps which do not shut down properly and drain the battery and not using a auto task killer.

my 2 cents
[Galaxy S I9000 General] jackall:
Using Latest K20A Kernel (JPX Build) NO LAGFIXES OR TWEAKS and Running Doc's Rom (Fat Version V6.2)

Clean install of everything last night before charging, no restores, everything "fresh" from the market.

Used the Delete Database Script (to delete thumbnails etc)

Fully discharged before a full night charge, and a couple of bump charges.

Cleared Battery Stats from CWM

Battery level as soon as charger was removed, was reported to be 97% (even after a couple of bump charges)

From Settings --> About Phone --> Battery Use

2H 20m Since Unplugged,

Display 51%

Voice Calls 44%

Cell StndBy 3%

Phone Idle 1%

Phone Usage :-

3G On (no wifi so far)

(Had a couple of phone calls about 30mins total)

Gmail Sync

POP sync (every 30 mins K9-Mail)

Beautiful Widgets -- Sync every 1HR

Remaining Battery 86%

Battery is Original Samsung (came with the phone) and is 5 weeks old.

In Battery History (from SGS Info) I have :-

1002 Full blue bar with about 1% red on the far right

1013 Full red bar

0 50% Blue

Android System 40% Blue and 1% red on far right

Dialer 30% Blue with about 5% red

Gmail 5% Blue

K-9 Mail 1% Blue

UID 10043 All Grey

Clicking on 1012 / 1013 / 0 processes gived FC

Clicking on UID 10043 gives google framework services

Main suspect for me so far, is mis-calibrated battery. Today will keep away from flashing anything so see how battery goes.

Drain started since installing the first JPX firmware
[Galaxy S I9000 General] razzda:
I'm interested in this issue. I'm currently using stock JPY from KIES with Voodoo 5.0.3 and believe I'm seeing battery drain.

I discharged the battery, did a full charge, reset the battery statistics using the clockwork recovery option and installed juiceplotter. Wifi and 3g enabled.

Will see how it performs by just leaving the phone as it is with juiceplotter as the only application running.

razzda
[Galaxy S I9000 General] bokbacken:
@darkalkemist

Look forward to your coming report

@dbraaker

2,3 and 4 is already on the suspect list, you accuse all non official roms or installations :D could you provide a little more info on this, or does other here have this experience so we could have more than 1 user saying this?? Please help in this so we could investigate further.

@jackall

Splendid report, keep us posted, this thread is now exactly 24 hours old and we have already made some progress, this is more than I could hope for, Thanks to all supporters!

@razzda

Glad you came here, please also try one of the forensic tools, they will tell you what app is active the most so you will gain so much more knowledge about the drainers.

Keep up the good work, if you see a post in other threads about battery drain / extend the life, please send me a PM with a link.

Thanks, and take care!
[Galaxy S I9000 General] Stefanauss:
I can definitely support the Odin Vs Kies installation issue: the only time i got the battery life i was always aiming for (48+ h) was when i updated to the official Froyo with KEIS.

Previously, from August to November, i always switched through JM1/9 Eclair Builds (generally accepted Best Battery Builds at the time) with Odin, and i was lucky to get 24h. Never had the battery life someone was reporting. Switching to Froyo with KIES, suddenly, out of the blue, like heaven-on-earth doubled my battery life.

I'm testing "bumping the charge": 12+ hours, 77% left, so far so good, will keep you updated at the end of this cycle.

[For completeness: Packet Data always On, Sync Gmail/Twitter/Skype/Last.fm/Calendar/etc On]
[Galaxy S I9000 General] bokbacken:
Ouch, this is really bad news, I don't feel like recommending anyone to use KIES :eek:

Someone needs to test this with 2.2.1 kernels through KIES vs. ODIN/CWM.

Or rather, this has to be Samsung official firmware vs. cooked?

Sometime the truth could hurt us :rolleyes: , but don't be scared of by that, lets investigate this also (I surely hope this is false)
[Galaxy S I9000 General] bokbacken:
New suspect

Added suspect #7, Non KIES upgrades

I call dbraaker and Stefanauss to the witness stand on this one!

How will we find any volenteers to try upgrading with KIES??

Anyway, it's on the list now.
[Galaxy S I9000 General] kootheancheah:
I have the same exact problem as you. I lose 1% every 2 mins When my wifi is on and I am surfing. (My data is always off.) However, when I check the battery usage, the strange thing the highest drainage (>90%) comes from display; wifi only consumes < 5%. But if the phone is on standby, the battery hardly drops. Overnite for 7 hrs, it drops only 2%.

This battery problem only appeared when I switched to JPX (darky v6) and JPY (darky v7). I dont have battery problem when I was on JPA.
[Galaxy S I9000 General] bokbacken:
Welcome to XDA as a contributor, I see this is your first post! I'm honored that it is in my thread!

This is a perfect opportunity to try hardcore's fixes, if your not already on his kernel (K12A) download it from:

http://touristinparadise.blogspot.com/2010/11/samsung-galaxy-s-download-speedmod.html

Then also get his wifi driver downgrade (to JPA) on:

http://xdaforums.com/showpost.php?p=10056736&postcount=6706

Would be great to know if any of these fixes really work!
[Galaxy S I9000 General] kootheancheah:
Additional info: The brightness on my display is also set to the lowest.
[Galaxy S I9000 General] Stefanauss:
Why is that, may i ask?
[Galaxy S I9000 General] bokbacken:
KIES :eek: the much hated application from Samsung, think about what would happen if we should start to recommend using it!!!:rolleyes:

(I was being sarcastic in the responce)
[Galaxy S I9000 General] Septoman:
Very strange...similar settings I use too. Maybe the modified ROM and Kernel has something to do.

I noticed that the biggest battery eater for me is the screen, although I use auto brightness and 30 sec timeout.

For example, now my battery level is at 27% after 17h and 10m and the Display used 93% with 2h and 25 min usage.

I will try a darkish wallpaper to see if the battery will improve.
[Galaxy S I9000 General] melorib:
I always lock the screen with the power button when I dont need anyway, I set to 2 min because I hate when it goes dim on me... :rolleyes:

The display should be using most, unless you are using it heavily, games, GPS, internet, etc...