Database Users

Terrible battery life

Hi -
I've had my HTC HD2 a few days and although I'm happy with it's features, I'm really frustrated by the poor battery life. The first day I used it the battery was dead within under 12 hours from me starting to use it, and at the start it was fully charged. On this first day I did have email and weather etc on auto check though.
So last night I disabled weather, set email to manual checking and disabled a few other things, but did leave HSDPA and 3G on. There was a slight improvement today but not much, the battery lasted the full 12 hours, but with only 2% remaining.
Both days I don't think my usage was very high. I'd maybe had 10 minutes of phone calls, sent around 10 text messages, listened to 45 minutes of music, checked one or two websites, and played games on the phone for about 15 minutes. Imagine how it would be when I need to make several calls in a day.
I have searched the forum for tips on improving battery life but the main suggestions seem to say that I should disable HSDPA and 3G but one of the main functions of the phone is internet usage and I don't see why I should how to switch to manually putting these settings on and off each time I want to use the internet, just so I can get a longer battery life - the battery should be able to cope with moderate usage!
Does anyone have any further suggestions?
Thank you

Look for an application called 'Bandswitch', it can disconnect idle connections. THis way 3G won't be enabled when you don't need it, should save some battery.
Disable automatic screen brightness and set it to something like 30%.
Disable location services and stuff.
Give the battery some cycles to reach full potential.
But of course, gaming, internetting and listening to music will drain the battery faster. It lasts about 2 days for me with moderate use (some internet, some playing around, etc) which is pretty fair imo.

dagrim1 said:
Look for an application called 'Bandswitch', it can disconnect idle connections. THis way 3G won't be enabled when you don't need it, should save some battery.
Disable automatic screen brightness and set it to something like 30%.
Disable location services and stuff.
Give the battery some cycles to reach full potential.
But of course, gaming, internetting and listening to music will drain the battery faster. It lasts about 2 days for me with moderate use (some internet, some playing around, etc) which is pretty fair imo.
Click to expand...
Click to collapse
I'll give that a try. So will it automatically enable it when I start browsing the internet or something?
I already changed the screen brightness and disabled location services though. That didn't seem to make a big difference.
And how much difference does giving the battery some cycles make?
Thanks.

dagrim1 said:
Look for an application called 'Bandswitch', it can disconnect idle connections. THis way 3G won't be enabled when you don't need it, should save some battery.
Click to expand...
Click to collapse
Sorry, but it doesn't work that way
Bandswitch can definitely do 2 things- it can disconnect idle connections, which will reconnect when needed, but this won't switch the transport between 3G and GSM, and has little effect on battery life
Or it can be used to manually change between 3G and GSM, using whichever is selected for its current transport and then autodisconnecting if required. It is the action of switching to GSM which has the most impact on battery life, but there is no way to switch automatically between to 2 as it needs a phone radio off/on to execute the switch.
Poor 3G signal conditions will hammer the battery because the phone will continually hunt for the strongest signal and switch constantly between modes. If your 3G signal is less than 2 bars I'd suggest switching it to GSM until you are in a stronger signal area. Do this by going to Phone/Menu/ then scroll down to Band and from there switch between Auto and GSM. If that makes a difference then you could install a small utility to make the switch easier to access.

seems very odd, mine was fully charged around 11pm last night, have sent around 20 texts, 20 mins calls, had wifi on, done some browsing, abit of sat nav and its on 68% 20 hours later.

I get at least 24 hours with moderate use. Most of the time i get around 30 hours.
I have weather and peep updating automatically + email retrieval at every hour.

When I first got mine it was lasting less than 12 hours too.
Now I'm on ROM 1.61 and have the following settings:
HSDPA disabled
Weather update every 3 hours
Twitter updates ever 1 hours (though it actually only updates when I scroll to the Peep tab)
Facebook auto updates - Off
Stock auto updates - off
Bluetooth and Wifi off unless needed.
Screen brightness - 30%
Haptic feeback, Vibration - off
Push Email - On
I'm getting over 24 hours of life out of a full charge now. I have got the push email set to manual updates only during off-peak hours ie when I'm sleeping. During the night the charge drops around 1% per hour. It was at 47% when I went to sleep last night and was 40% when I woke 7 hours later. This seems to be typical overnight drop for me.
Over my first few days of tinkering and setting up I found the battery drain to be massive. Once you settle down to regular usage it is a lot lot better.
However, just to be careful, I do now have a desk cradle at work so I can charge my phone if I have to.

Prior to my most recent hard-reset I found that if I left the phone in stand-by over night, with it checking for email every 5 minutes, and weather every 15 minutes, the battery would go from 100% to zero in less than nine hours. And that's without using it at all! As an experiment I tried turning off everything that could possibly be using the data connection, and turning off 3G, so nothing was running at all except the phone in 2G mode listening for calls and texts. It still burned 20% of the battery overnight in stand-by.
Since doing a hard reset, if I repeat the second experiment then I find that overnight battery drain is now only 4% - so clearly some piece of software that I had installed prior to the reset was hammering the battery even in stand-by. Quite what it was, I'm not sure yet. (My current prime suspects are the task manager and 1% battery status icons).
If you're having battery drain issues then I suggest doing a hard-reset and then not installing anything remotely controversial for a day or two to see if that sorts out the drain. If it does, then you can start reinstalling things gradually to see what difference each one makes.

NeilM said:
Sorry, but it doesn't work that way
Bandswitch can definitely do 2 things- it can disconnect idle connections, which will reconnect when needed, but this won't switch the transport between 3G and GSM, and has little effect on battery life
Or it can be used to manually change between 3G and GSM, using whichever is selected for its current transport and then autodisconnecting if required. It is the action of switching to GSM which has the most impact on battery life, but there is no way to switch automatically between to 2 as it needs a phone radio off/on to execute the switch.
Poor 3G signal conditions will hammer the battery because the phone will continually hunt for the strongest signal and switch constantly between modes. If your 3G signal is less than 2 bars I'd suggest switching it to GSM until you are in a stronger signal area. Do this by going to Phone/Menu/ then scroll down to Band and from there switch between Auto and GSM. If that makes a difference then you could install a small utility to make the switch easier to access.
Click to expand...
Click to collapse
Oh, I misunderstood it then... thank you for clearing that up!

It's very interesting, to see the number of people who have battery draining problems. I have the french SFR ROM 1.44 and since the beginning found my battery life satisfying (I didn't expect long life, as my wife has to charge her iPhone every night).
My battery lasts in heavy use 24h (though it can go down to 18h when using internet by 3G/HSPDA for long period like 1h or more) and under "normal" daily use (checking e-mail regularly, 20 min phone calls, sending some SMS, 30 mins internet, 45 mins playing around / listening some music) around 1.5 days.
My settings are:
3G/HSDPA enabled
Weather update every 6 hours
Stock auto updates - every 8 hours
Bluetooth and Wifi off unless needed
Screen brightness - auto
Haptic feeback, Vibration - off
E-mail check: every 2 hours (POP3)

Faulty batteries? I think not....
Whilst I'm a master of google searching, I get worse results using the search facility on this forum than just using intuition.
Anyway, I just wanted to add my comments on battery life after owning a stock 1.43 phone from Vodafone UK. I was getting less than 8 hours life with everything on auto and making just a couple of shortish phone calls and a couple of quick browses. The rest of the time I was in standby and I thought that my phone was one of the worst out there. I had also installed Skype which I had running in the background which sometimes causes the phone not to go into auto-standby even though it would dim normally. I also noticed that I was in a very weak signal area and that my phone was constantly switching between 2G/3G/H which I understand can consume a lot of power. Also, I had stopped using wi-fi to see if that helped.
After reading a million threads, I decided to conduct an experiment last night. Usually if I charge the phone before going to sleep for 8 hours it is down to 70% when I wake up having been left in standby. So last night I disabled everything. Turned off 3G, data connections, My Location, Weather update, Stocks Update, FaceBook login, e-mail updates, Skype, bluetooth, wifi. In fact absolutely everything I could find that could be turned off except the basic 2G phone itself.
Guess what, I wake up 8 hours later... 96%.
16 hours later.... 81% with very light use.
Now I'm going to have to spend many days playing around with different settings to see which apps or functions are gobbling the power. I have a nasty feeling that the weak signal is half the problem
So cheer up! It's not ideal, but this is a brand new, smartfone with bugs - not a Nokia 6110. Higher capacity batteries and ROM updates will come. In the meantime you just have to figure out what is sucking up the juice on your HD2 and disable these functions if you don't need them or when you are not using them.
Good luck and enjoy it! The coolest phone around...
Rickster
Donations appreciated (That incompetent government and those reckless banks put me out of busines...)

Hello everyone,
like the majority of the owners of HD2, in order to optimise the duration of accumulator charge, I use Band connection control programs , to pass in 3G only when it is necessary. Thus, I have:
- phoneAlarm: to force the 2G mode the night, and also for differ quiet mode if I am in meeting, etc…. In particular, in the case which interests me there, I force the 2G the night and asks to pass to 2G the morning.
- WMlonglife (version for HD2): which normally loads himself to make the effective switch 2G towards 3G or 3G+ if an application program requiring it is launched, and otherwise to remain in 2G. It should be noted that WMlonglife has two applis, one for the configuration, and to make manually changes 2G 3G, WMbandswitch.
- recently, I tested Bandswitch v2.8
I meet the following phenomena, and I would like to know if others also have them, and/or if there are parameters to change so that it goes better.
Point A: Already some question about the icons of the bar of state in top.
There are always two icons side by side. Tell me if I interpret them well.
one with a letter: G= GSM, E= Edge, 3G = 3G, H = 3G+
This letter tellsonly that this kind of network is available, but it does not say that one is actually connected there. Is it well that?
To know in which mode one is actually connected, it is another icon, on its line, with the 1 to 4 bars of reception and a small letter, which should be looked at.
This small letter, it is “H " ==> connected in 3G+, “3G” ==> connected in 3G, “E” ==> connected in Edge
and finally a simple antenna, which I imagine wants to say that one is just connected in 2G, no data connection
Is what all that is correct?
Is there another mean of knowing in real-time the current mode of connexion (and thus mode of conso of the accumulator)?
Point B, use of Phonealarm:
like said in introduction, I force the 2G (mode GSM/GPRS) during the night, and to 6:00 of the morning, I pass it in mode “house” where I put “Car”, by also putting the pin number at it, because it seems that for this transition, one needs the pin number (is it the radio cycle on-off?)
There, the first thing, they is that every morning, when I unlock it I find myself with the screen for input of the pin number, where it is enough to make cancel (because the code already entered via PA and even already connected). Moreover, if one tries to enter a pin number, then he refuses the input.
on the other hand, at this time, the telephone seems to remain in Edge icon “E”, and does not pass in H. On the other hand, so there I reset, then he will connect to H with the boot
Have you also this history of pin number?
For hangs, it is as if WMlonglife did not take the hand to force a 3G mode or 3G+….
this brings me to the point C
Point C: WMbandswitch… after a software reset, my Tel. is connected automatically towards the 3G network (or 3G+) of orange. On the other hand the morning (after to automatic wake up through PA), it remains in E. When I test action manually a passage in 3G with WMbandswitch, it does not change anything. I tested with radio operator chip on Samsung, or Qualcomm (WCDMA). similar behavior….
To check out, I then loaded and installed Bandswitch 2.8, and tried to change into 3G, and there I see appearing the letter H. so, there is a difference with WMlonglife, which would seem to show that WMlonglife does not manage to make the switch towards 3G.
Which radio chip put in WMlonglife?
Have you to it even thing?
Poind D: use of bandswitch 2.8 (on xda): I tested. Hard to know if that is interfaced well with all the remainder. Of your experiment, which one would you advise? It does not have the system of “whitelist” like WMlonglife…
Here is, in synthesis, to summarise my questions
- Has: major significance of the icons
- B: phonealarm and switch of the 3G mode (after a forcing in 2G the night)
- C: WMbandswitch, and configuration/use for HD2
- D: alternative to WMlonglife?
For info, with normal use of browsing, email and phone, I drop of about 50% battery for 24h, that is not so bad, but I 'd like to make sure about the Bandswitch thing...
Thank you in advance for all…
vdelab

Real world battery test - unbelievably good

Hi, I have been decorating my small bathroom today and I have had my N1 sat on a shelf busily streaming music from last.fm over a wifi connection.
I had the volume up full and was listening for a good 7 hours. The battery was at 95% when I started listening and I expected the phone to shut down by mid afternoon but it didn't.
At about 6.30pm I finished decorating (for the day!) and looked at the battery guage. It showed 64%. I couldn't believe it!
Battery use is shown as 26% cell standby (good 3G connection all day), phone idle 23%, mediaserver 2%, and wifi was just 10%.
I always thought wifi was a battery drainer but apparently not on the N1

i get steady drain when indoors @ the office where i only get Edge no 3G. Is the battery drain as bad when searching for 3G as it is searching for a signal in general?
aj

To my knowledge the screen uses the most battery (other than voice calling). So if you were not using either of them it should last you a long time.

andythefan said:
To my knowledge the screen uses the most battery (other than voice calling). So if you were not using either of them it should last you a long time.
Click to expand...
Click to collapse
Yea the brightness of the screen is to blame for most rapid battery drains.

I've found that forcing 2G when indoors is the best way to go (unless you still generally have solid 3G).
If you are in a solid 3G area, then just force 3G...
This gives you a much more stable network connection and means the phone doesn't have to work as hard, switching between EDGE and HSDPA.

gsvnet said:
I've found that forcing 2G when indoors is the best way to go (unless you still generally have solid 3G).
If you are in a solid 3G area, then just force 3G...
This gives you a much more stable network connection and means the phone doesn't have two work as hard, switching between EDGE and HSDPA.
Click to expand...
Click to collapse
how do you force a 2G connection?
aj
edit: network settings. got it.

ghostrida said:
how do you force a 2G connection?
aj
edit: network settings. got it.
Click to expand...
Click to collapse
Go to settings > wireless & networks > mobile networks and select only use 2g networks.
Edit: Nvm you ninja edited on me lol

gadgetgaz said:
I always thought wifi was a battery drainer but apparently not on the N1
Click to expand...
Click to collapse
FWIW, the specs on the Google page list 6.5 hours browsing the web on Wifi vs. 5 hours for 3G so it is at least better than 3G.
Also, streaming FM probably runs the Wifi in bursts with some buffering rather than continuously, wouldn't it?

Also, streaming FM probably runs the Wifi in bursts with some buffering rather than continuously, wouldn't it?
Click to expand...
Click to collapse
I'm sure you're right but the wifi radio is switched on all the time even if it just accessed data in bursts.

gadgetgaz said:
I'm sure you're right but the wifi radio is switched on all the time even if it just accessed data in bursts.
Click to expand...
Click to collapse
If it supports the WMM extension along with the router then it can request some low power support for maintaining the signal which drastically reduces the power needed when not actually sending/receiving data. It was created for things like WMA (which this phone doesn't have), but can be used more generally.

Last time I checked the screen display only used 4% at about half brightness ( maybe I'm wrong but I checked with bettercut shortcut )

ghostrida said:
i get steady drain when indoors @ the office where i only get Edge no 3G. Is the battery drain as bad when searching for 3G as it is searching for a signal in general?
aj
Click to expand...
Click to collapse
Your phone uses a lot of battery when searching for signal. Enabling Edge only should make that stop. My phone fluctuates at work because I'm in a big building so I just connect to the wifi and leave it.

I too am extremely satisfied with the battery life, for as fast as the phone is I wouldn't expect so much. I'm amazed, seeing it with such a small battery, this phone sips power.

just as a note, have had the 2800mah battery now for the recommended 5 full charges...phone has been on for 3 days now and is at 40%...crazy

nmeofdst8 said:
just as a note, have had the 2800mah battery now for the recommended 5 full charges...phone has been on for 3 days now and is at 40%...crazy
Click to expand...
Click to collapse
Nice! How does the extended back affect your use?

wow, just 31% after 7 hours!!
I lose 10% just getting to work (1 hour) with very limited usage and edge only.

britoso said:
wow, just 31% after 7 hours!!
I lose 10% just getting to work (1 hour) with very limited usage and edge only.
Click to expand...
Click to collapse
bouncing between edge and 3g drains the battery also.

Battery life went from poor to awesome to even worse?

Bought my Xperia just over a month ago, and installed juicedefender and juiceplotter to help manage my power use.
At first, I did the whole charging cycle thing, and managed to get battery life up to nearly 20 hours after a week! In the past few weeks however, my phone barely lasts 10 hours now...the battery dies before I can get a chance to recharge. I am a heavy user, but that doesn't seem to explain the sudden drop in battery capacity.
Because of the drop in power over the last few weeks, I have set EVERYTHING to not update, and google sync has been set to sync every other day.
Will my battery just continue to get worse? or do I have a faulty battery?
don't get me wrong, I love my new phone...I just need to know if this is a typical problem, or if I need to get a new battery.
Thanks!

Hi - I'm getting about 40 hours out of mine.. I tend to switch mobile data off when I'm at home as I use wifi.. the problem seems mainly to lie with 3G.. so when I'm out and about I switch wifi off and mobile data on.. but I tend to keep to 2G (GSM) for background syncing etc.. and switch 3G(GSM/WCDMA preferred) on when I want to do any active stuff.. like internet browsing of using the XDA app... I also have my Wifi sleep policy set to "sleep when screen is off"..
What do you use your phone for? if you can tell me a bit about how your using your handset I might be able to give you some more specific advice.

Thanks for the fast reply!
I use juice defender to switch off 3G when the screen is off. It connects every 15 minutes, could that be the issue?
I've looked for a way to switch to GSM, but I can't seem to do it with my carrier(don't have the option in my settings).
I use a lot of data, up to 3 gigs per month 3G only(on average). 4 or 5 calls a day, and probably 100 texts per day. I keep my screen at around 25% brightness.

If you can't switch to GSM then maybe try switching mobile data off all together when you're not using it..(when travelling etc)... (far from ideal I know!).. but it might help.. I think that the 3G radio isn't sleeping properly.. the new software update which is due out anytime now MIGHT solve it.. but only if you're either on an unbranded handset (sound like you're not) or your carrier pushes the update through to you...
The other things you can try is to switch off "Search for updates automatically" in the phone settings... and switch of determine location by wireless networks (in the location settings menu)..

There was a thread about auto brightness causing constant cpu drain, leaving it autobrightness is thought to be battery kind`er.
Ive stopped using task managers and just use default android control and its good for my battery. I check the ram availability occasionaly and though it gets down to around 30 or 40 or meg it shows no slowdowns or hangups but I do reboot after charging every other night.

I'm experiencing similar behavior: poor, then good, then poor, then good again, of course with similar usage. I don't use any task killer and have 3G always on. I have tried 3 different batteries: the stock one, the one from my X1, and the 1800 mAh from Mugen: same pattern with every battery.
I definitely think that there's something bad in the design of the power circuitry and/or in the kernel.

[Q] - What is using my internet connection?

I've been having overnight standby battery issue lately: between 20% and 30% of drainage in 10 hours.
At the beginning I thought it would be the SD card, but last night with SD not inserted, data connection on but pushmail off I had a 25% drainage in 10h of standby.
So I run another test and with SD inserted and data connection off I had a 5% drainage in 10h of standby.
This only means there must be some program.service which is using the data connection and I am not aware of: could it be possible? How canm I check?
Wheater is set to update only every 6h and facebbo every 2 hours, and besides pushmail I have nothing else.

maybe your phone is switching between gsm and hsdpa connection, each switch means it has to power up the radio. try setting it to not use hsdpa, see if it makes a difference.
i rarely use mobile data, gprs is enough for the few emails i get/send a day, so i have hsdpa turned off permanently (unless i need mapping or whatever) and it makes a huge difference to my battery life. (i live in a good/bad reception area, each floor in my house is really different, so it switches a fair bit)

samsamuel said:
maybe your phone is switching between gsm and hsdpa connection, each switch means it has to power up the radio. try setting it to not use hsdpa, see if it makes a difference.
i rarely use mobile data, gprs is enough for the few emails i get/send a day, so i have hsdpa turned off permanently (unless i need mapping or whatever) and it makes a huge difference to my battery life. (i live in a good/bad reception area, each floor in my house is really different, so it switches a fair bit)
Click to expand...
Click to collapse
mmmm no, coverage is very good at my place... and besides, I did not have this problem until a few days ago

if you're running an android rom then turn off google sync if you're not using it. You need it to access the market. Other than that turn it off. Also get yourself a task killer and close all apps before locking your phone.
One more thing. I've noticed a huge difference between radios. 2.15 uses way more battery than 2.14. I changed to 2.15 because the developer of the rom i'm using suggested it. After switching i had lower signal and way more battery usage. From 3 days standby time down to 1.5 if lucky.
Sent from my HTC HD2 using XDA App

Kov3nant said:
if you're running an android rom then turn off google sync if you're not using it. You need it to access the market. Other than that turn it off. Also get yourself a task killer and close all apps before locking your phone.
One more thing. I've noticed a huge difference between radios. 2.15 uses way more battery than 2.14. I changed to 2.15 because the developer of the rom i'm using suggested it. After switching i had lower signal and way more battery usage. From 3 days standby time down to 1.5 if lucky.
Sent from my HTC HD2 using XDA App
Click to expand...
Click to collapse
I have basic stock rom with CHT2 installed...
but yes, could be the radio at this point... I have 2.15 as well
will try to go back to 2.14

Maybe I found what is using my 3G connection
Ok,
I have left my phone in standby for 8 hours, from 00:00 till 08:00, with GSM ON, DATA CONNECTION ON, PUSHMAIL OFF and SD INSERTED. Battery drain was of 10%.
During these 8 hours I have never used the phone. Weather is set to download data every 6 hours, Facebook every 2 hours, as I said oushmail was off.
During these 8 hours I have monitored data usage with SPB WIRELESS MONITOR and the data traffic can be found in the attached xls file (traffic is in Kb/s), but as a summary I can say:
No strange applications or services are connecting to the internet: they seem all system services (ipv6hlp.dll, netbios.dll, CXPORT.dll, services.dll) plus manila.exe.
From 00:00 till 06:00 there was no data traffic
From 06:00 till 07:00 there was a very little traffic
From 07:00 till 08:00 there was "a lot" (nearly 1Mb) of traffic by manila.exe, most of which sent.
Could someone help me in analysisng these results?
Could this data traffic justify the 10% battery drain?
Thanks

Battery constantly drop 10+% every night irregardless whichever rom installed

my battery is dropping like mad recently, no matter which rom I use, JVK JPG JPK, all the roms that is known for good battery life, with various kind of modems.2G network taskilled everything before sleep, no gallery bug, no background data updates, not connected to wifi BT GPS, battery stat wiped, more than 3 times full cycle charge..I have done everything I could, the battery still drop like mad.I fully charge the device at 12am, took off the charger, the battery is 88% when its 8am..checked the batter use, cell standby 40+%, display 20+, phone idle 20+..no more and when I slide the menu, for nothing, just slide for fun, scroll the app drawer, see the apps flying, it drops another 1%..lol
I had no idea what is happening, maybe the battery is dead? but I checked the batter health it says good..should I buy a new battery or what
p.s.I had only 1-2% drop everynight back in a month time, but now... ... ... Is this some kind of hardware failure or battery's dead?

12% for 8 hrs is NOT that bad. I get around 1.6% drop per hr with Wi-Fi ON and push notifications.
Anyways, See if you have a Time without Signal entry under Cell standby. Keeping a phone in a low/no service area can drain the battery faster.

You should recalibrate the battery after each rom flash. I think there is an App somewhere in the forum which is really easy to use.
Sent from my GT-I9000 using XDA App

PhoenixFx said:
12% for 8 hrs is NOT that bad. I get around 1.6% drop per hr with Wi-Fi ON and push notifications.
Anyways, See if you have a Time without Signal entry under Cell standby. Keeping a phone in a low/no service area can drain the battery faster.
Click to expand...
Click to collapse
but the thing is I had only 1% drop using the same apps same setting last time.the battery drop like mad recently and idk why =(

johnsonxray said:
but the thing is I had only 1% drop using the same apps same setting last time.the battery drop like mad recently and idk why =(
Click to expand...
Click to collapse
Did you check for Time without Signal ? Maybe cellular reception in your area has deteriorated.

time without signal 0

PhoenixFx said:
Did you check for Time without Signal ? Maybe cellular reception in your area has deteriorated.
Click to expand...
Click to collapse
Or maybe just general poor reception in your bedroom? When I'm in school (a nice plain concrete building to prevent young software developers from ever finding joy in life) I have 1-2 bars of edge reception and my phone loses with data off around 1.5%/h.
Either that or your battery has lost capacity and you can fix the issue by buying a new one. My bet is on the reception.

nah not possible..I placed the device on the same spot everyday..back in a month time it constantly dropped 1-2% but now 10+%..its not about the signal or reception or what I guess..it may be due to the frequent flashings recently..anyway I just ordered a new battery..see if it works =(

theduckking said:
Or maybe just general poor reception in your bedroom? When I'm in school (a nice plain concrete building to prevent young software developers from ever finding joy in life) I have 1-2 bars of edge reception and my phone loses with data off around 1.5%/h.
Click to expand...
Click to collapse
I second that. In my basement lab at university, ~1 bar EDGE reception, 1.5%/h is not untypical

Is it searching for WiFi connections that is what used to drain mine when sleeping .
jje

JJEgan said:
Is it searching for WiFi connections that is what used to drain mine when sleeping .
jje
Click to expand...
Click to collapse
everything's off =)

Hold down your power button. Set data network mode to disabled.
I was getting 10-15% battery drain over 8 hrs of stand by with data network mode enabled.
Now with data network mode disabled (when I need it I just switch it on again) I get 1-2% drain for the same time period.
Sent from my GT-I9000 using XDA Premium App

Turn off all networks, including 2G (put your phone in to airplane mode) and leave it overnight. If the battery still drains the same then you can make sure it has nothing to do with 2G/3G/WiFi/BT or GPS.

BlackMY01 said:
Hold down your power button. Set data network mode to disabled.
I was getting 10-15% battery drain over 8 hrs of stand by with data network mode enabled.
Now with data network mode disabled (when I need it I just switch it on again) I get 1-2% drain for the same time period.
Sent from my GT-I9000 using XDA Premium App
Click to expand...
Click to collapse
no way..I don even have APN list how to have data network lol

PhoenixFx said:
Turn off all networks, including 2G (put your phone in to airplane mode) and leave it overnight. If the battery still drains the same then you can make sure it has nothing to do with 2G/3G/WiFi/BT or GPS.
Click to expand...
Click to collapse
well if its not about 2G/3G/WiFi/BT or GPS then what could possibly be the problem?

running apps or worn out battery

PhoenixFx said:
Turn off all networks, including 2G (put your phone in to airplane mode) and leave it overnight. If the battery still drains the same then you can make sure it has nothing to do with 2G/3G/WiFi/BT or GPS.
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What is the point in buying a smartphone, if needs turning off everything?
I suppose your custom ROM is a wipe install
10% battery drain overnight seems to be fine. If you use background data and auto sync, keep on Wifi because that will do the job quickly.
Widgets are notorious battery drains, esp weather widgets. Remove all type of widgets from display. Change sync interval for facebook/twitter to 3, 6, 12 hrs etc... from 15min, 30 min.
Check sync interval for apps like Pulse, buzzbox, weather apps

Just a thought.. how about letting your phone completely discharge. When restarted, immediately flash to stock rom, allow that to completely discharge, repeat process several times (3 ideally) then load your custom rom of choice.
If it sounds absurd, I agree. It really does! However just remember, electromagnetic charge carries resonance memory, much like xrays. This old school trick is not often related to modern batteries, but have found it to increase battery life with several Android devices.
The main things are screen brightness and running apps. Your problem sound's quite normal even. Considered a secondary battery?

I think it is fine because if I use wifi (i.e. browsing XDA forum), it use ~8% for HALF an hour.
Anyway why don't just shut it down when you are asleep?
Sent from my GT-I9000 using XDA App

tt0204 said:
I think it is fine because if I use wifi (i.e. browsing XDA forum), it use ~8% for HALF an hour.
Anyway why don't just shut it down when you are asleep?
Sent from my GT-I9000 using XDA App
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your battery dropped because you on wifi, at least, the thing is, I din even connect to BT wifi GPS, no task running in the background(taskilled before sleep) and it still drops 10+%..jus imagine if I had my wifi on overnight