yashsingh1/xdaforums huggingface dataset:
[Galaxy S I9000 General] szenna26:
Any idea why i loosing so much then ?
[Galaxy S I9000 General] amwebby:
Is auto rotation off?
[Galaxy S I9000 General] szenna26:
Yes, auto rotation is off
[Galaxy S I9000 General] amwebby:
Hmm. I actually got good battery on stock 2.2 but performance was so awful I upgraded to 2.2.1 (JPY) when it came out in the UK. At first battery drain was worse until I enabled airplane mode at night, turned auto rotation off and used OCLF to turn wifi sleep to 30 seconds.
[Galaxy S I9000 General] Greg767:
Well the only thing can drain your battery in this case is overclocking and/or a process that is running in the background and using a lot of CPU resources.

Have you tried to investigate whats running on the phone when idling like that?
[Galaxy S I9000 General] ingineru:
Aosp email 2.2 is ok but i am missing some features of the stock 2.2.1:

- move to folder

- peak schedule

- choose textsize / pinch zoon

- choose background color

bokbacken,

Have you made some tests with aosp email set on push? is the consumption similar to stock 2.2.1? I see it is better when checking every x minutes but i do not use much that feature.
[Galaxy S I9000 General] mbello:
Hi, yes I am using Notes Traveler and found this thread exactly as I searched if anyone else was having battery drain issues with Traveler.

By the way, that is not the only problem I have with Traveler. It also sorts of restart from scratch - "no emails in database" followed by a full sync - everytime I reboot my phone which uses a lot of bandwidth and processing time.

I am back using TouchDown for now.

SpeedMod + JPA wifi modem + JL2 modem have improved battery life for me significantly, from 10+% every hour to 3-4% every hour (for my SGS Captivate). At least the phone lasts the whole day now.
[Galaxy S I9000 General] thecresta:
Just tried the battery calibration. No joy. Tried the JPA battery fix too but no improvement

After 2 hours of nothing but standby with Wifi/GPS/BT off, screen set to 10% brightness by default, no apps running etc, and I'm down to 86% already. So dropping 8% an hour so far with no use at all.

Running out of ideas :(

Docs XXJPY v7 and Harcores k12k 500hz.

Update: 2 hours later and I'm down to 72%. I'm not even turning the screen on! No cpu intensive tasks, not using SGS email, no lagfix, media scanner disabled, calibrated, wifi fixed and turned off. Annoying! Going to try Hardcores new kernel and updating the ROM.
[Galaxy S I9000 General] henriquesb:
Currently using stock JPO with Voodoo 5.0.1, BUJP5 modem and JPA wifi. Allways 2G (EDGE), sometimes Wifi, brightness 10, wifi timeout 10s sleeps on screen off. Battery a bit more than one day. Using Touchdown, replaced Google Reader with Newsrob, no unexpected background running processes seen on OSMonitor.

Any advantage to move into 2.2.1, JPY, Darky's rom? Seems battery got worst to most of you who did...
[Galaxy S I9000 General] shavey:
Another one here who

WAS

experiencing less than satisfactory battery life (less than 10 hours with light usage) only to discover a fix that worked for me.

I'm unsure if it's the combination but I installed JuiceDefender and Battery Info and deleted all of my mail accounts. I then reflashed with Darky's and recreated my email accounts and voila! Now getting 36 hour+ usage but too scared to delete Juice and Battery info just in case :confused: they are the reason behind the improvements!

Good luck to one and all as I was at the end of my tether and had thoughts about resorting back to iOS! :eek:
[Galaxy S I9000 General] Lancey:
Everything is ok until i am started to use my phone even without wifi browsing, for example just scrolling in my phone settings makes me loose 1% every 3-4 minutes. I have no idea why its happening OSmonitor doesnt show anything.
[Galaxy S I9000 General] amwebby:
I have found that using packet data accelerates battery drain immensely in 2.2.1. If I'm away from wifi I switch it off and only switch it on if I want to check emails or a web site.
[Galaxy S I9000 General] amwebby:
Yes, official 2.2.1. Rooted to apply wifi fix but that is only non standard thing about it.
[Galaxy S I9000 General] amwebby:
The "bugs" seem to all relate to battery use, whether by wifi, data networks, notifications or sensors. However the performance and speed advantages are of such an order that it is worth it.

For comparison my iPhone 4 is slower and only gets 5 hours battery life with the same kind of use that sees me get 8 hours on the SGS.
[Galaxy S I9000 General] bokbacken:
Hi!

I see you in hardcore's thread also, you ask a lot of questions in a lot of different threads, but you never say what you have done before you got in trouble so it's not easy to give you any help.

But one thing that I think you forget that could cause you problems is that you dont clear the cache and dalvik after flashing different kernels.

You are also a user that should apply the clear thumbnails, media database script (use SGS Tools) quite often

If you have real problems, you HAVE TO describe what you have done, we are no mindreaders here.
[Galaxy S I9000 General] Lancey:
To be honest i have no idea what happened to my phone. Everything was amazing before first battery mod installing on doc's 6.1. I've tried everything but nothing changed) Actually i dont have terrible drain but i know that it was better)
[Galaxy S I9000 General] milro1970:
I believe one thing is the phone's battery drains while we are using it extensively and entirely another thing when the drain happens while the phone just sits in our pocket or on our office desk doing seemingly nothing...

We are dealing with bits that are doing something that has to be investigated.

I am not an expert but as far as I can understand my phone (your phone in your case) is very efficient on power saving when it does nothing: shuts down every bit of hardware and the cpu 'sleeps'. There is the android with the system apps and services like contacts and sync and there are also a ton of third party apps like opera, fruit ninja etc. When the battery drains with unusual rate some of these apps use it. Obviously some of these apps can use it excessively (wifi bug, media database bug, third party apps ill behaving etc...)) and there lies the problem. For instance I can see in my phone some apps are waking up the phone while I am not using it and use the internet... The thing that makes me go crazy is that the phone wakes up to load these apps in the background (Pulse, official facebook app, official twitter app, google reader, maps or latitude) and after they do what ever they are doing some of them close again. No matter how many times I have terminated them the system just restarts them. Why facebook, twitter or google reader is loaded while sync is off? What latitude do while locations in my settings are off and sync is off. What pulse wants loaded when I didn't loaded. Why skype always runs in the background as a service. These apps have taken over my phone without my real permission. (I know that when I installed them I have been generally notified for their behavior). I believe this is the real problem and Google has to address that. Not us.
[Galaxy S I9000 General] ingineru:
Yap, that happens all the time, data, and apps that use data consume the most of the battery....

Here we have to include the stock email client....

Make a test, open data, but untick background data, you will see that there is no battery drain. As soon as you tick background data, and depending the applications that are syncing you will see the battery going down...
[Galaxy S I9000 General] roisagi:
asme seetings - and i am loosing about 3-4% every 10 minites. unbelieveable...
[Galaxy S I9000 General] amwebby:
Great idea to list those apps that drain the battery unnecessarily. As well as "naming and shaming" it will help us to turn sync off for those apps or stop using them altogether. Are you going to do it here or start a new thread?
[Galaxy S I9000 General] bokbacken:
I really like your ambitions, but lets be realistic, if Google guidelines doesn't help to make developers implement this, neither will we.

I believe we should continue to focus on the problems in hand and try to help everyone that doesn't even get a full day of batterylife, since I started this thread I have seen a lot of changes made by hardcore, DocRambone and Darkyy to name a few.

When people say that their phone is drained in a couple of hours, they get help, earlier they got bashed and told that they imagine, they are stupid and a lot of other abuses, this has tankfully changed, so I feel my "mission" has been helpful.
[Galaxy S I9000 General] bokbacken:
To tell you the truth, this was my first thought, but then I became realistic (previous post)

I'm quite sure there is room for a "Hall of shame" somewhere in the XDA forum, and possibly there is one already.

But now we are talking about the Samsung Galaxy S I9000 here, and what you are suggesting affects all android devices, so that list should be someplace else.

If any of you decide to start such a list, please tell me and I will put a link to it in one of the first posts.
[Galaxy S I9000 General] milro1970:
"Hall of Shame" is a good idea and if it has to be started I see no reason not to be started here. Yes it is something that affects every android device but the same applies for this thread also. The Battery life problem is universal and not just i9000 specific. Sure there are issues that affect only specific devices but I bet these are not always the real issue for most of the users.

But there are other problems someone has to consider starting a Hall of Shame thread: for example it will be needed some kind of 'scientific' proof to include apps. Such an inclusion will surely harm the reputation of these apps and will annoy the developers community.
[Galaxy S I9000 General] amwebby:
Surely the only "scientific" proof is whether an app follows the guidelines or not. How we find that out is the problem.
[Galaxy S I9000 General] existz:
I've also noticed turning Samsung Apps from Wifi-Only to Off has made a huge improvement in Settings-Samsung Apps- .... seems its always scanning even set to wifi only.. went from 8hrs to over 24hrs

Posted from my i897 running JPY, Hardcores K12N and KP1
[Galaxy S I9000 General] shawn.ferris:
Hey all. Just curious if there are known issues with swype? I have system panel and noticed that when device usage doesn't have activity, process cpu usage is higher for swype. Granted, it's still under 1%, but enough to prevent the device from sleeping I presume. When device usage is active, swype consumes less cpu, sometimes none at all? Is this a known issue?
[Galaxy S I9000 General] bokbacken:
No, it's not.

I have not seen any report of this being a problem.
[Galaxy S I9000 General] shawn.ferris:
Ok.. Ill keep any eye on it and dig a little further.. I would actually classify my battery drain to be fairly good, so perhaps it's a fluke. I typically loser 1 -2% an hour at idle. I just like to watch things as I make changes and this struck me as odd. Thanks for the quick response!
[Galaxy S I9000 General] EarlZ:
When I reboot my phone, the gallery auto starts and hogs the CPU for a couple of mins along with the media scanner serivce, is this because i have over 1,200 images on my phone and a couple of video?

I see this a waste of battery and CPU cycles, andriod needs to implement another way of checking/caching media files.

EDIT:

Rebooted my phone and check the time consumed by gallery, its 1min 21s of CPU time.. one thing bad about this is if you lock the phone the gallery process does not continue.. things like these should be allowed to work in the background say for a given time of no longer than 3mins.
[Galaxy S I9000 General] lpy:
Modem Tests

Milliamp Mythbuster checking in again :)

Reading through pele78's, I have decided to put a few modem.bin files under the multimeter.

[All tests done with XXJPY firmware, SpeedMod kernel, and stock kernel. Results are the same with both kernels.]

As I always say, YMMV, especially in real-life situations/variables, i.e. when on the move, your network, your country, signal strength, etc...

I did these tests sitting down at the desk, with the phone's signal at around -89dBm, connected to the Optus network, with the screen off.

Add around 70-130mA to the total with the screen on (minimum brightness).

Add around 5-15mA to the total when speaking.

The On a call reading is from the phone number 1194, which is an Australian number that gives the current time. The date next to the modem name is what I found when peaking into the file.

After testing a few modems and seeing very little difference, if any, I decided to stop there. I assume it's safe to say they would all be somewhat similar, in stationary situations anyway.

These standard readings apply to all modems tested:

[Standby] 1-3mA

[Standby 3G on/Wifi off] 2-4mA

[Standby WiFi on/3G off] 3-6mA

UGJL2 [2010-Dec-21 18:20:51]

[On a call] 177-180mA, screen off

XXJPY [2010-Dec-20 13:09:37]

[On a call] 180-185mA, screen off

XXJPX [2010-Dec-17 12:58:40]

[On a call] 180-185mA, screen off

DTJP3 [2010-Oct-26 20:03:20] (Optus 2.2 DTJP5 Firmware)

[On a call] 176-180mA, screen off

XXJPP [2010-Oct-26 16:19:10]

[On a call] 178-185mA, screen off

Going by these figures, a standard 1500mAh battery should give you around 8 hours talk time, with the screen off. Of course, this may vary according to the network you're connected to, signal strength, etc...
[Galaxy S I9000 General] EarlZ:
How do you measure those mA readings?
[Galaxy S I9000 General] razvan_and:
I think there's something wrong with my Galaxy S. :eek: Over 9 days of battery life... 217 hours. I used to have 3 days battery life at best...

Galaxy S from Orange Romania, standard JPU, then JPY, product code changed to XEU, rooted with CF-Root, Gallery app from SGS Tools, aplied "clean_thumb_db.txt" script (SGS Tools), NO WI-FI, network mode: GSM only (EDGE), NO Bluetooth, autosync off, background data: on, autorotation: on, no games, no SGS Email app (only Gmail app), some music (audio), web browsing and 30 min. voice calls.

For me the changes that had a big impact were: Gallery app from SGS Tools, wiping thumbs and media databases, using only 2G networks (EDGE) and absolutely no WI-FI (I have a 500Mb/month data plan).
[Galaxy S I9000 General] EarlZ:
Pretty amazing and very possible as well, if your phone has those 1% drop over 8hrs. for 9days you will only lose 27% battery, screen time of 1hr 36mins is roughly 25~27% that alone accounts for the 50% loss in battery, the remaining 42% can be deducted that your phone call/web browsing/music took around that much.. and now you have 8% left.
[Galaxy S I9000 General] lpy:
Multimeter inline with the battery.
[Galaxy S I9000 General] EarlZ:
How is it done, can I ask for some pictures?
[Galaxy S I9000 General] NIC0LAS:
Thanks for your answer. Do all modems work with all carriers ?
[Galaxy S I9000 General] bokbacken:
Most of the do, but if they don't work just flash another.
[Galaxy S I9000 General] ingineru:
:)))

Why have you bought it if you do not use it???

I mean you should have bought a nokia 1100, but hey, you do not talk at it also

:)
[Galaxy S I9000 General] EarlZ:
Between System Panel and OS monitor w/c hogs lesser battery ?
[Galaxy S I9000 General] Lancey:
i think i may have it, before my problem started(battery drain) i used to have 65-70% of screen usage, now its always 88-95%. i dont know how it happened but the fact is, my screen is working too much)))
[Galaxy S I9000 General] m00f:
im busy calibrating my battery.

first i turned off my phone and charged till full

second wiped battery stats

turned on phone and started using heavily till phone turns off.

then i plugged charger and turned on phone.

but here it comes, when i turned on the phone it was already at 64%... whats up with this?
[Galaxy S I9000 General] lpy:
Sorry, I don't have it setup at the moment, but i could next time. It's nothing really exciting though; just a multimeter connected to the battery with wires soldered from the battery to the phone.
[Galaxy S I9000 General] lpy:
- Battery drain bug when startup sound is disabled -

Minor battery drain bug found

[Tested on SpeedMod kernel - but may work the same on other kernels with bootanimation.zip support]

This applies to anyone with a custom boot animation with/or boot sound disabled.

What does the bug do?

It consumes an extra 8mA in standby, which isn't a great deal, but also may not allow you to achieve that magical 1% overnight loss.

What causes it?

I don't know the specifics - possibly something to do with the audio driver? - but I do know that once a sound is played, the bug is dead, until the next reboot. Because the default Samsung boot screen includes the sound file, the bug never existed, by default. However, once you alter the bootup by using a custom bootanimation.zip (which also disables the bootup sound), the battery drain bug is present, until, as I mentioned, a sound is played - such as an mp3, notification sound, etc...

How do I find bootanimation.zip?

Either in /system/media/bootanimation.zip or /data/local/bootanimation.zip

The default startup sound sucks, how can I change it?

Edit /system/etc/PowerOn.wav. I changed mine to a little "beep", so I know for sure the sound file has been played.

You typed stuff in bold, is the bug really that bad?

Nah, it's only minor. But now that you know, you can do something about it. :)
[Galaxy S I9000 General] marf3:
thanks, fixed some problems. Hope bat stats will change
[Galaxy S I9000 General] AndrewBurrow:
I have been scouring t'internet for a solution to the famed battery drain problem on the Galaxy S and found no fix but I know exactly what is causing the problem for me. Exchange email. If I have it set to 'Manual' it is fine and I will get 2 - 3 days battery life with little use. The results from Battery Graph back this up with a steady 1-2% per hour over night.

As soon as I enable 'Push' the battery starts to drain at about 10-15% per hour. To support this if I then switch back to 'Manual' the battery life goes back to normal.

Here is my set up and some of the things I have tried.

Galaxy S (UK vodafone, network locked, not SIM locked)

Darkys ROM v8.0

Snowflake live wallpaper

Android Agenda widget

3G Watchdog

Weather widget

Battery Graph

Gmail with calendar and contact sync

Exchange account (to Exchange 2003 server, NO SSL, calendar sync)

No WIFI

No Bluetooth

Background data on

Auto-sync on

Roms I have tried :

Eclair

Froyo JPK, JPO, BUJP8, JPU, Darks 7 and 8

I have tried upgraded the email app to the Galaxy Tab version, 2.2.1, AOSP Email with a 300 and 1800 heartbeat. I have looked at battery history and am no longer getting any partial wake locks or any thing significant in any other category. I have wiped the phone, done a full factory reset and installed a clean rom and left it to see if the battery was ok. Added my Gmail. Battery still ok. Added Exchange account and battery still ok. But as soon as I change the sync schedule in Exchange the battery drops like a stone.

I have installed OS Monitor and while watching, it only shows OS Monitor (~15% CPU), Android System (4-10% CPU) AND Sensorserver_yamaha (4% cpu). This is the same regardless of the Exchange Sync settings.

This is driving me mad. Gmail is push and works like a charm. If I could just have Exchange working the same with normal battery life (2 days approx) I would be a happy bunny.
[Galaxy S I9000 General] ludovicianul:
Well this are my numbers :) I was also very surprised at the beginning
[Galaxy S I9000 General] mollu:
How do you guys do it? Less than 5% over night :eek: :confused: :)

I and one of my friends have our phones for a month for now and we have a battery drain of about 10% / 3-4h (with no use of any kind + gps, data, bluetooth, rotation off)...

Figured out by myself that the mail sync was a problem (30%/h + it gets hot), tried to use push (tip from here) - no help, only disabling data network mode helps

tried to use only gsm - no noticeable help

Also updated from stock 2.1 to stock 2.2 (XXJPP/XWJPF) - no change...

I'll try to reflash the rom, not set up any mail / apps (only juice) disable net and see what it does... (seems that factory reset does not restore/remove rooting)

When no help, will try a custom rom...

Does somebody with the same rom have also a drain of below 5% over night (or is my case a hopeless one)?

Does somebody know what happens wiht the battery calibration when you use 3 different batteries in it (original, a cheap replacement one and a 3000mA one)
[Galaxy S I9000 General] ingineru:
i use doc 7.1.1 ( no sound at boot ) and most of the time i do not loose 1% during the night - usually battery lelevl stays the same.
[Galaxy S I9000 General] NISMOFO:
Great research....my ROM allows me to turn this on/off in the menu....of course I have the sound off. I guess I'll live with a boot animation sound for the sake of some battery. :)
[Galaxy S I9000 General] NISMOFO:
The trick I use is the go to bed really, really late.....and wake up really, really early. 1% overnight......lol.

I think some battery meters are more accurate than others...and actually show the drain literally as it's happening. Others are more like the original battery icon and fib a little about the drain. I could have lost 20% of my battery and my bar has barely moved (if at all)....it definitely doesn't show 20% of the icon missing.

But on my old ROM (which had a numerical display as well), if I lost 20%.....the icon literally showed a 20% drain on the icon. It was way more depressing and actually one of the reasons I changed ROMs.

I have no idea if this helps or just makes it more confusing. This is just what I have noticed....but I'm still a newbie, so don't believe anything I say :D
[Galaxy S I9000 General] lokhor:
I have a question regarding using multiple batteries. My battery life has never been good since I got my SGS and so I purchased a wall charger with 2x replacement batteries (chinese imitation ones). These appear to have pretty terrible battery life so I switch between them and my OEM one. I still get pretty terrible battery life on all 3 batteries although it's noticeably worse with the imitation ones. Does swapping between batteries cause issues with battery stats or does it store different battery stats for each battery?
[Galaxy S I9000 General] NISMOFO:
I would like to know as well. Since my first ROM flash I have stuck with the Samsung battery and have been purposely trying not to use my spares.
[Galaxy S I9000 General] zerozoneice:
2.2.1 stock Froyo via Kies

3G(Data) Off

Wifi Off

Background data Off

Auto-sync Off

Minimum brightness

Auto brightness Off

Manual Exchange sync (activate wifi or data, open mail app, refresh, close app, turn off wifi/data)

Moderate browsing with minimum brightness in (stock) browser settings.

Phone was basically used as "normal phone" for calling with data usage only when necessary (manual sync exchange hourly and weather update 4-5 times/day)

With this pattern achieved 4,5 days of battery, battery now to 2%:
[Galaxy S I9000 General] Lancey:
How do you get 38% of display usage???:eek: mine is always 89-96
[Galaxy S I9000 General] gravejester:
Easy. By hardly turning on the screen :-P
[Galaxy S I9000 General] Lancey:
i used to get 50-60% on older ROMs with the same usage.
[Galaxy S I9000 General] Lancey:
totally true! +1
[Galaxy S I9000 General] hudich:
I aggre with you.. It's bad that we pay so much for a smartphone and we have to think all the time if the battery go off before we get home