Database Develop

[Q] Froyo meial battery drain issues

Hi all,
Hope someone can help or this can be of help to someone.
I have a UK Galaxy S 16GB on Vodafone. Came with Eclair XXJF3. I have flashed it several time to various versions of Froyo including XXJPK, XXJPO and most recently BUJP7 (as it is the official Vodafone ROM). All using Odin.
Like most I seem to have had battery drain issues, very rarely getting over 12 hours of non use.
I decided to flash one last time to a clean build of BUJP7. I first reverted back to Eclair with repartition and then to BUJP7 without repartition. OK so far. I installed OCLF and set Minifree to Strict and Scheduler to Deadline with tweaks. I also installed Battery Graph and set up my Google account.
I left it like this and noticed I was getting excellent battery life. Infact over night I was getting anything form 9 hours with NO (0%-1%) battery drain and about 7% battery drain. Which is excellent.
I then decided to setup my work Exchange email account. And BAM, thats the day the laughter died. Battery drain was back to the level other have been reporting, about 10% per hour. I have messed about with the email collection frequencysettings, using Push, Pull every hour and even set it to None, and still getting battery drain. If I remove the account completely, the battery drain poroblem vanishes.
I have also tried this with a regular POP and IMap account and it seems to have the same effect as having Exchange setup.
I apologize if this has been answered else where but there is a sea of threads about battery drain and none seem to focus on the fact that it could be email accounts that are causing it. I know that my battery stats are shot due to RFS (repeated flashing syndrome, is that illegal?) and so maybe I need to do a complete factory reset, wipe my internal SD card and see how that goes, but it just seems to coincidental that the email accounts setup and battery drain occur at the same time.
Thanks in advance to anyone who supports this thread and hope I have provided some insight into (another) cause of battery drain or at least given some food for thought.
Andrew

Someone made a thread saying that if you set it to push the battery drain isnt as bad as when its set to poll every time frame.
I think that may have been my issue (the first thing i setup was email and the battery was dead after a few a hours). Also flashed back to JM1 as i couldnt work it out.
Might try it again, bit annoyed with all of this massive drain...

BTW, the thread title should be Froyo EMAIL battery drain issues. DOH! Me and my sausage fingers.
Thanks for the reply. I have tried Push and Pull email settings. And had it set to never pick up email. Seems like just having the email account set up is enough to drain the battery.

Thats bloody annoying, im not really sure what else to suggest? You could try an alternative client like K-9 Mail, I had to use that on Eclair as the Samsung client wouldnt work with my hotmail account.
I was thinking of trying another Froyo ROM tonight, but not sure if i should now

[Q] [HELP!!]Battery drained in 8h on standby, random restarts and power offs

Hi.
I'm having bit of a problems with my SGS in last couple days; i'll give you last example, but same thing is happening last couple days:
- yesterday I have fully charged my phone; I have disconnected it form charger before I went to sleep.
- today in morning (8h later), phone was turned off
- when I turn it on, I got message to connect it to charger, because battery was on 15% (from 100% to 15% in 8h on standby)
- because this thing was happening last couple days, I have made sure that I didn't leave any apps running in background, that will be able to drain battery that fast.
- I opened settings and take a look at battery statistics;
Cell standby was over 70%!!
When I click on it, it says "Time without signal 70%"
So basically, he has drained almost entire battery by searching for GSM signal. But I have full GSM signal all the time.
But what's the weirdest thing; now that I'm awake, phone will work normally all day; it will last on those 15% almost whole day on standby.
But when i'll go to sleep, ti will start to go crazy over night.
And it's no a problem that he drains almost entire battery over night (it is, but not biggest); problem is that he powers off, so I can miss some important calls in morning (this is my business phone).

do you use a taskkiller? If so, stop using it for a while to see if things improve.

Have you upgraded to Froyo?

pwhooftman said:
do you use a taskkiller? If so, stop using it for a while to see if things improve.
Click to expand...
Click to collapse
I use task manager, and he is "manual" task killer; so I don't have any automatic task killers.
_dsk_ said:
Have you upgraded to Froyo?
Click to expand...
Click to collapse
I'm still on 2.1 android.

Did you install any new apps recently, did you change anything etc?

nwsk said:
Did you install any new apps recently, did you change anything etc?
Click to expand...
Click to collapse
A week ago I made factory reset and clean up my phone, because I had installed bunch of stuff there that I didn't need, and this was faster solution then unistalling one by one app.
I have then rooted my phone (it was rooted also before factory reset), and I have installed voodoo lag fix (before I had one click lag fix).
After that I setup my phone with just stuff I use, and it was working brilliantly till last couple days; only thing that I can remember that I have installed in last couple days was update for angry birds.
One user on Samsung galaxy forum suggested that I switch on flight mode, and than turn it off. Now I will see if this will help; apparently this resets GSM radio.

Voodoo has always been known to kill batteries. I got 8hours on single charge when I was on voodoo. No big deal
single finger pecked on a galaxy s

Samsung Galaxy S Battery Drain

Hi,
im having battery drain problems the phone wont last more than 5-6 hours send 20-30 texts listen to some music, i have turned off backgroud data and live wallpapers, im using something called advanced task killer free to kill the apps that are running, but i close them the re open the task bar and stuff like music player has reopened
ive also seen a post about which batterys are better is there a better one i can buy? my batterys a G7
any ideas ?
cheers

Stop using the task kiler and you'll probably see better battery life. Task killers have been proven more harmful than helpful on the newer versions of android so using it is pointless. Also pay attention to what you have synced and how often. tons of web apps synching will drain the battery faster, as will having the gps and wifi turned on--if you're not using them, disable them.

thanks for the reply i will remove the task manager,
auto sync is turned off and i only use email by refreshing the inbox

Come here: http://forum.xda-developers.com/showthread.php?t=884816
In short: Have you recently updated via Kies to JPY version? If so, stop using your wifi. There is a bug with wifi with this newest firmware.

hi,
i update to 2.2.1 through kies

Do you use wifi?
If yes, switch to data, battery life will be better. You should be able to get around 48h of light active usage (i mean browsing and calling and what not) with 3g data on.

i dont really use the wifi, signals really good around me, i only got the phone friday, brought it of a friend,
charged the phone fully before i went out last night about 7pm by 1.30am the phone had cut off, that was only using the facebook andriod app and sending text messages.

Than there is something terribly wrong. Do a wipe and factory reset, if you didnt after getting a device from your friend.. It seems that some application misbehaves and drains battery.
You can check it by typing *#*#info#*#* in dialer
Several options there, if there is something strange you will see it. (suggest looking into Battery history, usage statistics)

i dont know how to type in dialer sorry sounds very stupid all i have are digits

liamparker89 said:
Hi,
im having battery drain problems the phone wont last more than 5-6 hours send 20-30 texts listen to some music, i have turned off backgroud data and live wallpapers, im using something called advanced task killer free to kill the apps that are running, but i close them the re open the task bar and stuff like music player has reopened
ive also seen a post about which batterys are better is there a better one i can buy? my batterys a G7
any ideas ?
cheers
Click to expand...
Click to collapse
Have you tried reconditioning your battery yet?
http://forum.xda-developers.com/showpost.php?p=10092321&postcount=11053
From the above post:
TechnicR said:
About my battery life:
Previously I was on Darky's v5, with that the phone lasted 2-3 days with normal usage.
After flashing to v7 (with 100% battery) I also got the fast drainage problem. Here is what I did:
1) Turn OFF phone
2) Charge till it says it is FULL
3) Start in RECOVERY
4) WIPE battery stats
5) RESTART android (yes, it might already be on 98% or so)
6) USE phone heavily. Don't worry if it drops too fast. Use it till the Android system turns OFF automatically (it happens when your battery is below 1% - for me the phone was on 1% for about 40 mins. This is where it heavily myscalculated
7) PLUG IN your charger, TURN ON android and wait till it is FULLY charged again. (It is better if you don't use the phone at this charging up)
Now, after you disconnect the charger, you should still have 100% for some time (I've been using the phone for 32 mins - writing this post - and it is still on a hundred percent) and with this, I got back the 2-3 days battery life with normal usage.
Also, you should set WiFi to: "Never when plugged in" and by default I disable Data Network. But my phone is using WiFi all the time so it doesn't really matter
So to summerize this method, the key is to show the phone the battery's minimal capacity too, by using it till it is on null. Because with charging to 100% than wiping or flashing only introduces the maximum capacity to the system and the minimum is only guessed. THIS gives the faulty reportes and makes us think the phone drains too fast.
Try this method, than feel free to share your results
Sent from my GT-I9000 using Tapatalk
Click to expand...
Click to collapse
This may not be the exact case you are having, but the idea is the same. Give it a shot.

nvm, 'info' stands for '4636'

You could also use titanium backup and freeze some apps from running
Sent from my SGH-T959 using XDA App

Having the same problem
Hey, I'm having the exact same issue as the OP. Have you found a solution yet? I deleted the task killer just now, but did that work for you?
Thanks.

Same problem
hi
I have the same problem. I bought it 2-3 days ago. today i charged it full while fone was off, switched on at around 8AM my usage detail was
3g was on
gmail on sync
skype on sync
5-10 min of skype calling
5 min of normal calling
5-10 min of facebook browsing through android app
30 min of chatting on skype
at 2PM the fone was at 20% battery. My wifi and gps were off all day.
is there anything i can do to get atleast 15 hours of battery with normal use
regards
harris

If you are having issues with your battery, before you try killing tasks, changing setting and what not and especially if you are running custom ROMs, then you need to recondition your battery. The same goes for anyone who is having high drain issues.
If you follow the steps I posted from someone else's post and then find that your battery is not having issues, then start looking at your modem (if using a custom ROM or you've upgraded to new firmware).

ive done a factory restore, ive found what my usage says idle 4% the display 80%
contrast is switched right down

i know im not using any custom roms im using the firmware that you download through kies

liamparker89 said:
i know im not using any custom roms im using the firmware that you download through kies
Click to expand...
Click to collapse
still should try it first

I'd suggest posting this question in the Galaxy S general forum as you'll get a lot more responses

Same here
Data network activated (2g or 3g) phone die after 11 hours.
When data network deactivated phone die after 2 days!
I installed whatsapp, gtalk and one email account with 10 mins refresh.
I never use wifi.
Drain 7 - 8 % per hour when phone idle (Phone on with 3g data but without using it)
I really don't know how to "finger pointing" suspicion app via battery history.
BR

[Q] Froyo 2.2 - Change in Battery Performance?

Before, I was running a stock 2.1 Eclair, with a Voodoo LagFix, and LauncherPro (using all 7 screens with widgets). My battery then, would last all day, easily, as long as I wasn't using GPS. I had all my email settings, and widget settings to update EVERY HOUR. For a smart phone, with many widgets running and lasting all day, it was wonderful.
Fast forwarding to now: I updated to the new Froyo 2.2, and re-installed all the apps I previously had, along with the Voodoo LagFix for 2.2, LauncherPro (still using all 7 screens with the SAME widgets) and set all of my applications (that do need updating) to update EVERY HOUR. Now, I literally sit back and watch the battery percentage just drop. Ex. My battery was at 97%, but after writing this, it's now at 93%. In about 2 minutes....what the hell?
Has anyone else noticed a change in your battery performance? I've downloaded the OS Monitor to see if anything new has been added, and that's draining the battery, but there is nothing showing that wasn't before. I'm wondering in there is something new that was added, which is running in the background. Ideas?

JDM9499 said:
Before, I was running a stock 2.1 Eclair, with a Voodoo LagFix, and LauncherPro (using all 7 screens with widgets). My battery then, would last all day, easily, as long as I wasn't using GPS. I had all my email settings, and widget settings to update EVERY HOUR. For a smart phone, with many widgets running and lasting all day, it was wonderful.
Fast forwarding to now: I updated to the new Froyo 2.2, and re-installed all the apps I previously had, along with the Voodoo LagFix for 2.2, LauncherPro (still using all 7 screens with the SAME widgets) and set all of my applications (that do need updating) to update EVERY HOUR. Now, I literally sit back and watch the battery percentage just drop. Ex. My battery was at 97%, but after writing this, it's now at 93%. In about 2 minutes....what the hell?
Has anyone else noticed a change in your battery performance? I've downloaded the OS Monitor to see if anything new has been added, and that's draining the battery, but there is nothing showing that wasn't before. I'm wondering in there is something new that was added, which is running in the background. Ideas?
Click to expand...
Click to collapse
Yeah, because 2.2 charges differently. 2.1 will charge all the way up to 4.3V whereas 2.2 will only charge up to 4.0V (sometimes a little higher). So the initial drain seems faster, but once you get to about 80% it is the same.

Yeah, I agree with what @ryude posted. Mine went from 100% to 95% rather quickly yesterday but it stayed at about 95% for a while. I went to bed with around 48% and when I woke up (about 6-7 hrs), it was about 40%. So the battery life seems slightly better. BTW, I'm running stock with LauncherPro.

Thanks for the heads up. I'll keep an eye on it. I was just wondering if others have experienced any similarities and if it was just something normal (as mentioned above) or if there is some new function running in the background by default which is draining the battery. Cheers.

I'm actually noticing an improvement in battery performance, with everything on my phone being equivalent pre-update to post-update.
No lagfixes or anything like that installed, though.
Sent from my SAMSUNG-SGH-I897 using Tapatalk

Screen on 0% brightness uses about 400 mW and on 100% brightness uses almost 1000mW. I've seen CPU usage spike over 400mW but usually stays around 100mW. Wifi uses about 50mW when on and 10mW in low power state (screen off).
So those are the big 3 power drainers right there.

If you did not put the update on at 100% you might have a problem with the battery stats a simple way to fix that on stock would be a complete drain on the battery
Sent from my SAMSUNG-SGH-I897 using XDA App

Ok, here are a couple things I have found thus far.
One - After installing the Voodoo LagFix for 2.2, and rebooting into recovery mode, I was actually booted into ClockworkMod - Voodoo Lag - Recovery Mode. That's something new. Anyways, there is an option to "clear battery stats". After briefly reading about this on another thread here on xda, the individual said it's a must to do. I'm not sure if this is because of the Voodoo Lag Fix or what, but I did it and will report back at the end of the day.
Two - This is something new in Froyo 2.2, and it was never an option in 2.1. After going into Settings - Location and Security - and un-checking "Use wireless networks" and the re-checking it, it says "Location Consent - Allow Google's location service to collect anonymous location data. Collection will occur even when no applications are running." That right there could be the reason why the Maps app is constantly running? I turned it off, which I have never done and have always left on, but will see if this makes a difference as well.
I'll report back with results tonight.

I've had a similar issue. Updated from an unrooted, untouched stock eclair to the new stock froyo release, left it charging overnight and today not only was the battery dead in less than 6 hours, but the phone had used all of the data from my limited data plan. I have not installed anything and never had a launcher or any other thing of the sort. No lagfix, nothing.
Now I went with a factory reset, since that is clearly recommendable after any os installation (or before actually) and will see how it goes from here...
Also, the phone would not recognize my sim card at times, so I'd have to reboot to get it working, sometimes more than once... That, however, seems to have been solved with the factory reset...
Sent from my SAMSUNG-SGH-I897 using XDA App

I had massive drop from around 45% to under 10% in an hour last night. I figured it was a glitch after the upgrade so I did a full charge with the phone on, then powered it off. "full" charge powered on turned out to be around 95%, the remaining 5% charged while it was off.
After doing that and then powering back on, I've found my battery life today (first full day after update) to be pretty good so far.

JDM9499 said:
Ok, here are a couple things I have found thus far.
One - After installing the Voodoo LagFix for 2.2, and rebooting into recovery mode, I was actually booted into ClockworkMod - Voodoo Lag - Recovery Mode. That's something new. Anyways, there is an option to "clear battery stats". After briefly reading about this on another thread here on xda, the individual said it's a must to do. I'm not sure if this is because of the Voodoo Lag Fix or what, but I did it and will report back at the end of the day.
Two - This is something new in Froyo 2.2, and it was never an option in 2.1. After going into Settings - Location and Security - and un-checking "Use wireless networks" and the re-checking it, it says "Location Consent - Allow Google's location service to collect anonymous location data. Collection will occur even when no applications are running." That right there could be the reason why the Maps app is constantly running? I turned it off, which I have never done and have always left on, but will see if this makes a difference as well.
I'll report back with results tonight.
Click to expand...
Click to collapse
The location consent prompt has always been there since eclair and is part of how google collects data on locations and cell towers. Like you said, it pays to turn off unless you're using the maps or other location dependent app.

Battery life in the last few days

Anyone notice a change in their battery life in the past few days? My girlfriend and I both are going through our batteries in just over half a day with no use. It's like the phone isn't sleeping. Looking at battery use Display is using all of the battery. I'm running CM7.0.3 and she's on stock. Looking at mine right now the phone has been on battery for 1 hour 34 minutes, and Display is taking 57% of the battery and I'm down to 84% battery.

Yes! I've had my N1 since January 2010. I stayed stock until recently when I installed CM 7.1 RC1 shortly after it was released. Battery life had always been great, both stock and under CM7, especially with SS4N1. Then, a few days ago it just fell off a cliff. I now get only about 7-8 hours, even with little to no usage. Before I'd barely lose anything if the phone wasn't being used (a percent every couple hours).
Now the Nexus One Battery Calibrator application shows a drain of ~200 mA or more constantly.
I've been tearing my hair out for the last few days, uninstalling apps right and left, trying in vain to figure out what's causing this. I even considered a full wipe and reinstall of CM 7, thinking that some system setting somewhere had gotten horked.
I've always had WiFi set to never sleep, since I'm usually either at work or home. I've also had preferred network type (*#*#4636#*#* -> Phone Info) set to "GSM auto (PRL)" for months.
I've not made any other changes I can think of that would've had such a drastic impact on power consumption. I didn't track all the app updates that happened around the time it started, so I suppose it could be one of those. But I've uninstalled just about everything and it's still happening.

I have the same issue! Just in the past week or so. I have about 50% battery then a hour or so later it's dead! I was going to get a new battery today but maybe it's a CM7 issue. I use the nightly as soon as they hit the mirror.

An update on this... There may be a big issue going on with T-Mobile or some recent update:
http://www.tmonews.com/2011/07/t-mobile-g2-users-suddenly-suffering-from-huge-battery-loss/
Looks like other users on different phones have the same issue!

Thanks for that article, Lost Dog. Makes me feel a bit better. At least I know I'm not just going nuts.
My phone still has increased battery drain even if I put it in airplane mode though. It helps, but it's still much faster than before. This makes me really puzzled as to what the cause could be. How could the cell network still be causing increased drain if the phone's completely disconnected from it? Some sort of configuration information it received that persists even after the cell radio is turned off? EDIT: I may be wrong on this one, see below.
Last night I tried a complete wipe (using Temasek's full format "Format-signed.zip" first), and re-installed CM7.1 RC1 completely fresh. I installed only the minimal Google applications and a couple crucial tools (my password safe app). However, I'm still getting the same quick battery drain today.
I hope we (or T-Moblie) can figure out how to fix this. It really cripples my phone as a useful tool to have such short life!
EDIT: I'm going to try a workaround I've seen mentioned in comments on the TMoNews and Phandroid articles about this: limiting the cellular connection to 2G/EDGE only. It seems to have made a significant difference so far. I may have been incorrect then about airplane mode not having an impact. I'd only been checking current drain with the N1 Battery Calibrator app, and never left it in airplane mode for long. Anyway, I'll post back later this afternoon with results.

Ok, so switching to 2G-only for the cellular connection seems to have made a HUGE difference. The drain rate seems to be back at around what I'd expect. Everything else I left exactly the same (WiFi on, GPS enabled, same applications, etc.)
So, I'm starting to suspect something may be up with T-Mobile's 3G/3G+ service in some areas that's preventing phones from idling properly.
Anyone else want to give it a try?

Interesting, I'll switch over to 2G only and see how that affects my phone.
I've gone as far as wiping everything and that didn't help so if it really is a t-mobile issue then that would shed some light on the situation.

I see the same trend when switching to 2G only. Very steep power usage with 3G then a dramatic decrease in the discharge slope in 2G.
T-Mobile has an issue. The trick will be getting someone there to listen.
Sent from my Nexus One using XDA App

Here is my screenshot. You can clearly see when I turned on 3G. Dramatic difference. Looking on the T-Mobile forum there are many people seeing the same issue but there's mostly finger pointing and speculation as to the cause.

nir0th said:
Anyone notice a change in their battery life in the past few days? My girlfriend and I both are going through our batteries in just over half a day with no use. It's like the phone isn't sleeping. Looking at battery use Display is using all of the battery. I'm running CM7.0.3 and she's on stock. Looking at mine right now the phone has been on battery for 1 hour 34 minutes, and Display is taking 57% of the battery and I'm down to 84% battery.
Click to expand...
Click to collapse
I also got the same rapid battery drain since last Wednesday. At that time, I thought there may be a hardware/battery issue for my nexus one. To test this, I switched my rom from CM7 back to GB stock. After a few updates for the GB stock and used it for a day, same battery drain happened. So, I changed to use another backup battery yesterday. It did not help also. I thought it may be a real hardware issue.
Then, I found this thread and research a bit in the web. I found out it could be either caused by tmobile or google map updates. I first uninstall google map and reinstall the new version right from the market again. I also switch off 3G as well. No rapid battery drain for the entire day. The battery runs normally. When I came back home today, I turned on 3G, let it for a couple of hours, checked a couple of emails and received a 20min phone call. Everything seems to work fine. No noticeable rapid battery drain was observed. My conclusion so far is: this is caused by google map 5.8 update.
Try to uninstall it and reinstall the google map from the market to see if it helps.
Good luck.

ricky9237 said:
I also got the same rapid battery drain since last Wednesday. At that time, I thought there may be a hardware/battery issue for my nexus one. To test this, I switched my rom from CM7 back to GB stock. After a few updates for the GB stock and used it for a day, same battery drain happened. So, I changed to use another backup battery yesterday. It did not help also. I thought it may be a real hardware issue.
Then, I found this thread and research a bit in the web. I found out it could be either caused by tmobile or google map updates. I first uninstall google map and reinstall the new version right from the market again. I also switch off 3G as well. No rapid battery drain for the entire day. The battery runs normally. When I came back home today, I turned on 3G, let it for a couple of hours, checked a couple of emails and received a 20min phone call. Everything seems to work fine. No noticeable rapid battery drain was observed. My conclusion so far is: this is caused by google map 5.8 update.
Try to uninstall it and reinstall the google map from the market to see if it helps.
Good luck.
Click to expand...
Click to collapse
Well, I'm willing to give it a try, but I'm skeptical. If it were the Maps 5.8 application that was preventing the phone from idling correctly, or transmitting tons of data, wouldn't we expect it to happen regardless of whether the phone was using the 2G or 3G radio connection? Sure, there might be a slight difference in the drain rate, but we'd still expect to see it in both cases. And yet the accelerated drain is alleviated completely by using only 2G. I have the Maps 5.8 application and can fix the problem by using 2G only. That indicates to me it's not an issue with the application.
I'll try uninstalling Maps tomorrow (I'm using CyanogenMod, so it's possible to remove it completely). Then I'll put the phone back on 3G and report back on what happens.

I've been experiencing similar battery issues the past week or so too. It looks like turning on 2G only seems to fix it, but what I don't get is why I'm still getting horrible battery life?
I have tasker auto turn off my 3G all together whenever my screen is turned off, and yet I leave my phone on my desk untouched all day and I end up at 40% when I get off work.
Wouldn't turning off 3G via Tasker be the same (or close to it) as turning on 2G only in the settings?
Hope t-mobile gets this worked out pretty soon!!

Glad I saw this thread. My wife and I both have N1s and have each been noticing unusually fast battery drain just in the last 3-4 days.
Last night I charged both phones to the same percentage, turned off 3G on hers and let them both sleep for a while. The phones are configured pretty similarly (stock, latest Maps installed, similar push settings etc). After about an hour and a half, my phone had lost 11% of its charge and hers had only lost 2%. That's enough of a delta for me to point to the 3G usage as the culprit. I guess I will be leaving my phone on 2G when I'm not using it if I am going to be away from a charger for a while.

It's NOT the Google Maps update.
Well, I did my experiment yesterday to rule out the Google Maps 5.8 update as the cause of this issue.
I'm running CyanogenMod so it's possible for me to uninstall Google Maps completely, not just the updates. I did so on Saturday night. Still set to 2G only, I removed my phone from the charger Sunday morning. A few hours later I enabled 3G. Later that afternoon I turned 3G off again.
I think the screenshot speaks for itself. Again, this is without Google Maps installed at all.
I asked around this weekend, and my friend's wife (also here in Portland, OR) is experiencing the same issue on her G1 on T-Mobile. Reading online I've heard about the problem affecting the MyTouch 3G, the G2, and many here with the Nexus One. The common elements seem to be: T-Mobile 3G service, particular models of phones, and some particular geographic areas.
Bottom line (IMHO): T-Mobile has a problem with the configuration of their 3G service in some areas, and it's preventing many phones from being able to idle/sleep properly, resulting in huge battery drain.

Here's mine, I posted this several days ago in the TMONEWS thread.

keenerb said:
Here's mine, I posted this several days ago in the TMONEWS thread.
Click to expand...
Click to collapse
That's interesting. Even locking the phone to 2G/EDGE didn't have an impact? (not a Nexus One there it appears, what model?)
How did you go about disabling the 3G connection? I'm not sure if there are multiple ways to do it, but I used:
Settings -> Wireless Networks -> Mobile Networks -> Use only 2G networks
Really strange that even pulling the SIM didn't seem to make a difference. Or maybe that's not the same as turning off the cell radio entirely? Perhaps the issue is lower-level, like the radio constantly polling the tower or something even in the absence of being able to successfully register on the network for active use.
Does enabling airplane mode fix the drain issue for you?

Deliamber said:
That's interesting. Even locking the phone to 2G/EDGE didn't have an impact? (not a Nexus One there it appears, what model?)
How did you go about disabling the 3G connection? I'm not sure if there are multiple ways to do it, but I used:
Settings -> Wireless Networks -> Mobile Networks -> Use only 2G networks
Really strange that even pulling the SIM didn't seem to make a difference. Or maybe that's not the same as turning off the cell radio entirely? Perhaps the issue is lower-level, like the radio constantly polling the tower or something even in the absence of being able to successfully register on the network for active use.
Does enabling airplane mode fix the drain issue for you?
Click to expand...
Click to collapse
This is a G2.
2G has been much better than 3g, but still probably only 3/4 of my former battery life, optimistically. I checked "Use 2g networks only", same as everyone else. The graph above is a little misleading, since I really saw better battery life, that initial flat and quick drop actually averages out to "decent", rather than "horrific.
At the "Pulled SIM and SD card" mark I re-enabled 3g, so the drain afterwards is still 3g related.
Pulling the SIM doesn't disconnect it from the radio tower, you can still make emergency calls/etc. so it has to maintain a connection I suppose.
Twice I hard-reset the phone, pulled out SD and SIM, and still had huge huge battery drain. Powertutor said IDLE draw was 1437mw on average, no SIM, no WIFI, just sitting there on my desk.
In Airplane mode it'll last for days...

Wannagotopopeyes said:
I've been experiencing similar battery issues the past week or so too. It looks like turning on 2G only seems to fix it, but what I don't get is why I'm still getting horrible battery life?
I have tasker auto turn off my 3G all together whenever my screen is turned off, and yet I leave my phone on my desk untouched all day and I end up at 40% when I get off work.
Wouldn't turning off 3G via Tasker be the same (or close to it) as turning on 2G only in the settings?
Hope t-mobile gets this worked out pretty soon!!
Click to expand...
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I'm not familiar with Tasker. However, maybe it's just disabling cellular data use, not actually disabling the 3G radio? From what we've seen it appears the problem is very low-level, perhaps something to do with basic communication/negotiation between the cell radio in the phone and the towers, as there's no indication of particular application activity or significant data transmission that the Android OS is aware of.
In the T-Mobile support thread there are reports that T-Mobile is now acknowledging there's an issue with changes to their HSPA+ network in some areas.

I've had 3G off all day and my battery life is back to normal. I'm at 87% after at least 6 hours on battery. Yesterday I was down to less than 50% by this time. Luckily, I am able to be on Wifi at work so I don't have to deal with EDGE speeds, which make the Baby Jesus cry.
deliamber, you probably noticed this already but I'm also in the Portland market. It's gotta be a network issue.

I'm having the same issue on my N1 (I'm around the Portland area myself)
I did everything as well, 2g is the only thing that saves me..
Can't wait for a fix!