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As stated! Literally 78% of battery usage. I have only just started using email on my phone! Battery was amazing up until using email. I'm on rooted 2.3.3! Could anyone help.
The stock email app blows for exchange connectivity. It constantly hangs on me (the retrieval of email that is). I find when you have an area with a flaky connection (in and out of 3g), you get these issue. With it comes battery problems I've noticed.
I use touchdown for my primary exchange account to solve the lack of incoming email, but it too has battery issues if when it goes in and out of 3g coverage. It was fine until an update earlier in the year (on my old phone, then i noticed the battery issue, still notice on the arc now).
Are you using exchange or just regular email? If you notice your battery draining quick, its probably best to do a force close on it. You should be good to go for a few more hours until it happens again and the cycle repeats. The issue has been around wince 2.1 and I'm not sure why google doesn't get around to fixing it (I'm assuming the mail app at least uses a background service by google as I had the same issue on cyanogenmod since android 2.1). Its a well known issue.
I'm sure this doesn't help, its more of a "Me too".
I hope it gets better for you.
Yea its exchange mate! What a nightmare this is! Work email too so really need to find a work-around for this! I don't seem to have the issue of incoming email, it purely seems to be the battery usage! What a shame. thank you for the speedy reply.
you could try forwarding all your email to your gmail/ googlemail account and use that instead... doesn't solve the problem of replying though.. but you would at least get instant notications of incoming mail, without screwing your battery.
I also have this problem on my Arc - Accounts: Gmail & Exchange. With use of Green Power (Battery Saver which enables data traffic only 1 minute, then 10 minutes data traffic off) this drain-problem becomes WORSE. Before Update to 2.3.3 Green Power really saves some battery, after update 2.3.3 Green Power makes the drain more.
Best solution for me atm is: use only 2G, and don´t use Battery Savers like Green Power. I have to try playing around with exchange refresh settings (Push, once per hour...)
With this my battery drain ist about 2% per hour (no wifi, no gps, no calls... Only phone idle). Not perfect, but best i can get atm...
I use moxier mail for exchange mail. It's a pretty expensive app, but works flawless for me. Maybe there are some free exchange apps too try to search the market. Moxier mail doesn't even site up in my battery usage stats.
Thanks, I will give moxier mail a try.
Hard to justify since I bought touchdown already. I've since turned off push in touchdown and set to 15 minute intervals. Not ideal, its no longer draining my battery.
I've had this same problem for a while after updating to 2.3.3, I think the general solution is to NOT use push email and rather, set a interval (15 minutes or greater).
If you're in an area with scarce connectivity, the email application apparently continues to attempt to sync even with no signal so in that case, maybe a 3rd party email client will be better. Though apparently the popular K9 mail doesn't support active sync =/
Can anyone tell me how to set up email using Moxier? I cannot get it to connect to my exchange account at all, i have tried all possible combinations. My email address is [email protected]. Can you tell me what my domain would be? (previously using stock app i used @broadfieldprimary.herts.sch.uk - this worked fine) What my server would be (using stock app, I used db3prd0204.outlook.com - and this worked fine also. But trying to use Moxier - Paid - I cannot get any connection to this email!!! I'm sorry if this is a basic question, but If anyone could explain the set up I would need I would be eternally greatful!!
This may have been addressed, but a search didn't reveal anything exactly like this. Please bear in mind that I'm an Android newbie!
I bought the Incredible 2 last Thursday. No rooting, nothing weird, still mostly stock. This morning it's running very slow, screen transitions jerky, etc. and even text based email takes minutes to open. I messed around in settings, and notice that Mail (com.htc.android.mail) is using 48% of my battery, more than twice what the screen is using! I force close, and the phone speeds right up, lag is gone, screen transitions smooth but, minutes later, Mail comes back on line and the phone goes to crap.
I've used more that 1/2 my battery in two hours. I notice that the uptime is 1 hr 58 minutes, and the awake time is 1 hr 44 minutes, so I assume that the mail app is also preventing the phone from sleeping.
Any advise will be greatly appreciated!!
This may sound obvious, but did you try resetting your phone? Turn fastboot off (settings > applications > click fastboot so it is unchecked) then kill mail, and before it has a chance to restart hold the power button, then shut down. The restart option might work, but for things like this I prefer a good old fashioned power down, power up. Anyways, power your phone back on by pushing the power button for two seconds or so. Then see how it goes. This is an error that I have not heard about, but a reset is a universal problem solver. If it doesn't work, tell us what kind of email accounts you have set up (pop, imap, exchange) and how many, and also the settings for checking the mail.
Hopefully the restart will fix it though.
Sent from my Incredible 2 with Xda app
Thanks! My limited Android knowledge told me to try a restart, but I actually didn't know how on the Incredible 2!!
Anyway, the problem went away for a couple hours, then came back!
I use a POP server for my work email, and gmail for personal. I really don't understand this, as nothing has changed since yesterday, but the phone has slowed to a crawl!
Try a third party email app. I don't know of any offhand as I only use gmail on my phone. My gmail account checks my imap account on another host so it's all together, and I can distinguish which account is which on the emails through gmail tags.
Umm I think this will require a factory reset, because you can't uninstall stock mail nor freeze it without root
Sent from my ADR6350 using XDA App
You can temp root, and freeze the stock mail app if that is the way you decide to go. Instructions found here http://forum.xda-developers.com/showthread.php?t=1068544. But that sounds more like something faulty with the software, because like I said, I have never heard of that happening before. I would take it back to Verizon, complain incessantly, and point out that you could have fixed it yourself if the phone had an unlocked bootloader
Do you have them set to check mail constantly, push, or are they on a delay? Can you use imap for work instead of pop? I have four accounts set up on mine, including an exchange, and three imap accounts. The fact that it just started happening leads me to believe something broke in the system, though. A factory reset and re-flash may indeed fix the problem. Also, do you have good 3g coverage most of the day? Check your time without signal under battery status in settings. Click on cell standby and it should give it to you. Or are you using wifi most of the day?
Sorry for the rambling questions, just writing stuff out as I think of it. Trying to narrow down what the problem could be.
Thanks, again.
I'm using the mail settings that the school requires, so can't change them. Currently set only to update when the app is opened.
I generally get good cellular reception at work, and I have wifi as well. I've been trying it with or without wifi today, with no changes. I'll try a reset and see if that helps.
I just mentioned trying another app because I don't see these problems and I do not have the stock mail app configured in any way.
RobWoodall said:
Thanks, again.
I'm using the mail settings that the school requires, so can't change them. Currently set only to update when the app is opened.
I generally get good cellular reception at work, and I have wifi as well. I've been trying it with or without wifi today, with no changes. I'll try a reset and see if that helps.
Click to expand...
Click to collapse
Factory reset should probably fix it
Sent from my ADR6350 using XDA App
RobWoodall said:
This may have been addressed, but a search didn't reveal anything exactly like this. Please bear in mind that I'm an Android newbie!
I bought the Incredible 2 last Thursday. No rooting, nothing weird, still mostly stock. This morning it's running very slow, screen transitions jerky, etc. and even text based email takes minutes to open. I messed around in settings, and notice that Mail (com.htc.android.mail) is using 48% of my battery, more than twice what the screen is using! I force close, and the phone speeds right up, lag is gone, screen transitions smooth but, minutes later, Mail comes back on line and the phone goes to crap.
I've used more that 1/2 my battery in two hours. I notice that the uptime is 1 hr 58 minutes, and the awake time is 1 hr 44 minutes, so I assume that the mail app is also preventing the phone from sleeping.
Any advise will be greatly appreciated!!
Click to expand...
Click to collapse
I've had the Inc 1 and now the two. I've always turned off the (auto sync) this would require yyou to open your mail and manually refresh or of you use the sync all widget it works that was as well. Seems to save a ton of battery only drawback being you have to manually check it. Ie. No mail notifications. Just a thought maybe you want to give it a shot.
Thanks, everyone. Using a combination of all your advise, the problem is resolved. I factory reset the phone, then installed only my gmail account. This worked fine all of yesterday, so I finally got off my butt and learned how to use gmail to read and send my work email last night. That seems to be working well. I'm still getting email notifications, but gmail is only using 3% of my battery, as opposed to the 48% that Android mail was using.
Still don't know what caused the trouble, but I'm very pleased with the solution.
Thanks again!!
Email battery problem also on Nexus S
I have also the problem that the standard email is consuming the biggest part of the battery - mostly over 50%. I use an exchange account and a pop email, but both not synchronized automatically (manual sync interval), and I do not use them so often - max. one sync a day...
Anyone an idea how to improve this?
Please use the Q&A Forum for questions Thanks
Moving to Q&A
HTC mail has always been a battery drainer for me. I just use the Gmail app.
AgalychnisCallidryas said:
HTC mail has always been a battery drainer for me. I just use the Gmail app.
Click to expand...
Click to collapse
Or k9 mail....just set the settings to update manually...
Gmail is the only non battery hog.
Sent from my Incredible 2 using xda premium
K-9 Mail
I had also the problem (as mentioned above) with the standard android email programm and a so related short battery life. Since I deleted all email configurations there and installed K-9 mail client instead, battery life improved a lot. Before I could use my phone about 2 days, now it lasts for around 5-6 days...
Ok its been pointed out that "solution" is a poor choice of words but rather I have pinpointed the culprit mmaking android os drain the battery. I would like to first start off by saying that the reasn I chose to make a new thread was because the "Android OS" consuming battery thread is pretty much all over the place. Its not very informative if this bug is plaguing your battery life. Way too much random talk about wifi and other things. I dont think I saw one mention of adb or a logcat in that thread. No one is really doing any testing and sharing information so that we can get to the bottom of this. I would prefer if this thread was more informative where you posted what you did and what the result was. Mods if you feel as if my post should be in that thread then so be it. Enough with my rant here goes.
The problem I have found is that something in the google account is making the suspend function go bonkers. When the phone attempts to sleep it ends up spiking the cpu pretty hard for a good amount of time too. This is why some of us are not getting the phenominal battery life others are boasting about. The temporary solution I have found is to do a reset and not put any google account information in. This is why when some people have reported they did a reset and they still have the problem that its still there. Dont use your gmail. I know I know... the solution kind of sucks but its temporary until a real fix can be pin pointed. I am trying to get to the bottom of this as fast as I can. Thanks to Sprints new return policy I would like to do so as fast as possible. I have tested this on 3 phones so far. On all of them I did a reset, and then only installed the amazon appstore and watchdog. The amazon appstore was so that I could get watchdog. No cpu spikes alerted by watchdog on any of the 3 phones for the whole day. At the end of the day I added the gmail account that the user had been using to one of the phones and watchdog began to alert shortly after the screen timeout kicked in when the phone was attempting to sleep. Reset the phone again without adding a gmail account and the problem was gone again. Yesterday I began gradually installing other apps that I use day to day to continue my testing such as maildroid, twitter, etc. I got through the whole day on 1 charge with no problems. I cant remember how long I was on wifi but lets just estimate it was between 4-6 hours. This is with two accounts pushing to maildroid using IMAP idle so it doesnt have to poll a server which is better on battery. The official twitter application also uses push. I also have groupme installed which I use for my business to communicate with team members throughout the day. It is a chat application and it also uses push to send messages. Also I have left all the stock widgets in tact during this whole period of testing. The weather widget is set to refresh at 4 hours i think and the news widget is on manual refresh.
My next steps are trying to figure out why certain gmail accounts making suspend peg the cpu so hard. Today I plan on using one of my backup gmail accounts that doesnt have any contacts or apps purchased. I will be posting my findings later. I do apoligize for being so long winded but I hope this post helps someone out there and helps the community get to the bottom of this bug. Thanks for your time!
You call that a solution? Not put any Google Account information in? Thanks!
/sarcasm
I have a better solution. Don't turn the phone on! I haven't turned my phone on in 3 days and my battery is still fully charged! It's amazing!
Don't troll people least he is tryng
Sent from my SPH-D710 using XDA App
Lol glad to see my efforts are so well recieved... Ive pinpointed the problem. Maybe you can find the solution yourselves.
Ill admit the "solution" defeats the whole purpose of these phones however at least it kinda narrows down the problem and can possibly help work towards a solution.
Im not going to remove my google account but instead I mail turn off mail sync and contacts sync and see how that goes for a day.
clamknuckle said:
I have a better solution. Don't turn the phone on! I haven't turned my phone on in 3 days and my battery is still fully charged! It's amazing!
Click to expand...
Click to collapse
Please post pics
As another poster said, no need troll. He pinpointed the problem for us. Thanks op.
You can set up the built-in email client to still sync your google email. You just will get your email through the email client rather than through the gmail app. You will also not be able to download apps, but you will at least be able to check your gmail.
gall0249 said:
Please post pics
Click to expand...
Click to collapse
I hope to god this was a joke otherwise I demand some form of an IQ test before being allowed membership here
Thanks for the testing and post OP, personally I would rather deal with worse battey life until a better fix is discovered, but I appreciate your time.
Sent from my Galaxy Tab 10.1
clamknuckle said:
I have a better solution. Don't turn the phone on! I haven't turned my phone on in 3 days and my battery is still fully charged! It's amazing!
Click to expand...
Click to collapse
Works for me. Lol
Sent from my SPH-D710 using xda premium
I run mine @ 1.6ghz performance. Here's a better solution, invest in a backup battery =)
Sent from my SPH-D710 using xda premium
Yeah I'm going to troll a thread like this everytime.
It's not a "solution" it's a "work around" A solution to a problem is not stop doing something that is supposed to work. It's fixing the problem so that everything works like it should.
Buying a top of the line smart phone and expecting great battery life, is like buying a Hummer for great gas mileage
Sent from my SPH-D710 using xda premium
SAShady said:
Buying a top of the line smart phone and expecting great battery life, is like buying a Hummer for great gas mileage
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
One tank of gas can last 3 years in a hummer, just keep the keys in your pocket
Is anyone else trying to figure out what this bug is? While his work round is not that great at least we can find out what is causing the bug and maybe someone can fix it. Thanks op.
The Evo3D Killer!!!
Thanks for this thread!
I am far from being able to provide in depth troubleshooting, but if it helps anyone, here's my progress so far. Two things:
1. Before seeing this thread (without changing anything) I had the phone in airplane mode for about an hour in my pocket and when I checked the battery stats, for the entire time the phone was in airplane mode it was also awake. Screen off.
2. After reading this thread, instead of disabling the Google account, I just un-checked "sync" for everything except gmail in Accounts and Sync (so calendar, contacts, books, etc. doesn't sync unless I manually do it)
After about 2 hours with this setup, android OS battery usage has dropped way down.
Hope this helps someone!
Good grief, you people are so ungrateful it is amazing. The OP is not suggesting you will never be able to set up your Google account. He is trying to narrow down where the problem exists so effort can be focused there rather than other places mentioned like WiFi. This thread is for us to work together to find a solution.
MoMatt said:
Thanks for this thread!
I am far from being able to provide in depth troubleshooting, but if it helps anyone, here's my progress so far. Two things:
1. Before seeing this thread (without changing anything) I had the phone in airplane mode for about an hour in my pocket and when I checked the battery stats, for the entire time the phone was in airplane mode it was also awake. Screen off.
2. After reading this thread, instead of disabling the Google account, I just un-checked "sync" for everything except gmail in Accounts and Sync (so calendar, contacts, books, etc. doesn't sync unless I manually do it)
After about 2 hours with this setup, android OS battery usage has dropped way down.
Hope this helps someone!
Click to expand...
Click to collapse
Worked for me. I also re-enabled all of the syncs on google account and the problem has not returned, yet.
Although a lot of people here are claiming that they get great battery life off this phone, especially with custom ROMs and all kinds of tweaks (SetCPU, Juice Defender, etc), I find my experience to be the contrary. My battery drains 8% with screen off, and 25% with light usage, no matter what tweaks I use. No I'm not kidding. I even removed all my user apps (so no facebook syncing no nothing) and bought a new OEM battery and NOTHING HELPS. And I do hear from time to time that there are minority of people like me who have this problem.
But finally with the hint from someone in another thread (thanks to him big time), I can confirm the real cause of this crazy drain is your EXCHANGE EMAIL!!!
Whoever with ridiculous battery drain, turn off your exchange email or set the sync option to "manual". This will solve your problem! After I set it to "manual" my battery only loses 1~2% per hour while screen off. A HUGE improvement. This problem has been driving me nuts ever since I first got this phone but now it's resolved.
Haha I remember reading about your frustrations with your battery life in your posts. Very glad that you found the solution. Enjoy your kick-ass battery life now.
Umm... some of us like our Exchange Email sync and are willing to carry multiple batteries and swap them as needed when Touchdown drains the pack dry...
FYI, this is also an applicable fix on most other phones, iphone included. Exchange push chews up a lot of mAh's...
ronin4740 said:
Umm... some of us like our Exchange Email sync and are willing to carry multiple batteries and swap them as needed when Touchdown drains the pack dry...
FYI, this is also an applicable fix on most other phones, iphone included. Exchange push chews up a lot of mAh's...
Click to expand...
Click to collapse
+1
10 chars.
What is exchange mail and how do I disable it?
I had similar issues and it was frustrating the heck out of me. I needed Exchange because my version from Telus did not include direct Hotmail account support. And the battery life was draining so fast I could watch it drop.
The solution is to download seven.apk which does include direct hotmail support. http://forum.xda-developers.com/showthread.php?t=960269&page=14
Don't use the Market version of Official Hotmail created by Seven. It's a little bit buggy still and won't let you update or enter contact information.
i use K9 mail for Hotmail accounts
Microsoft opened up their POP and SMTP even for non premium users
guys, I've recently noticed that mail_service (from exchange)wakelock drains my battery pretty badly, I've reset the account a few days back and enjoyed quite a bit of good battery life (like 1-2 hrs for 1%, with 3G/data on and auto sync off) for two days,but today the bug came back. I wonder any of you experience this?
There has been reports of battery drain and the Android OS not going to deep sleep properly. However, there's to many factors to take into account.
Some claim that opening and closing the camera app has something to do with it. (CMOS sensor is kept open and active)
fregor said:
There has been reports of battery drain and the Android OS not going to deep sleep properly. However, there's to many factors to take into account.
Some claim that opening and closing the camera app has something to do with it. (CMOS sensor is kept open and active)
Click to expand...
Click to collapse
my Android OS was at 30some%, the betterbatterystats showed mail_service contributed to over 50mins wakelocks while I set manual sync. I am afraid it's another bug that android has.
exchange sucks when it comes to battery life, but I think it's more a protocol thing than an app thing. I did battery tests ages ago on my nexus one, and found exchange sucked up more battery/h than gmail/gtalk/facebook/+++ (basically everything else + phone idle) did combined.
Note that if you dont have exchange on push sync some exchange servers will require a full refresh when you connect. So it'll suck up more battery to sync every hour than having push notifications on. (Although exchange push requires a continously connected encrypted session... which isn't great for battery life either).
nurre said:
exchange sucks when it comes to battery life, but I think it's more a protocol thing than an app thing. I did battery tests ages ago on my nexus one, and found exchange sucked up more battery/h than gmail/gtalk/facebook/+++ (basically everything else + phone idle) did combined.
Note that if you dont have exchange on push sync some exchange servers will require a full refresh when you connect. So it'll suck up more battery to sync every hour than having push notifications on. (Although exchange push requires a continously connected encrypted session... which isn't great for battery life either).
Click to expand...
Click to collapse
I've been using exchange since I got my Desire and GS2, but neither one had problem with exchange draining battery (which I didn't find it from betterbatterystats), and even for Galaxy Nexus, this bug is on and off, I hope there's a solution for that
hongkongtom said:
I've been using exchange since I got my Desire and GS2, but neither one had problem with exchange draining battery (which I didn't find it from betterbatterystats), and even for Galaxy Nexus, this bug is on and off, I hope there's a solution for that
Click to expand...
Click to collapse
It never showed up in the battery stats for anything. But if I disabled exchange and left it overnight I'd have WAY better battery/h than I did if I left it on.
nurre said:
It never showed up in the battery stats for anything. But if I disabled exchange and left it overnight I'd have WAY better battery/h than I did if I left it on.
Click to expand...
Click to collapse
For disable do u mean freeze/ remove account/ stop auto sync?
Sent from my Galaxy Nexus
ICL53F
4.0.2
Rooted
Stock rom & Recovery
hongkongtom said:
For disable do u mean freeze/ remove account/ stop auto sync?
Sent from my Galaxy Nexus
ICL53F
4.0.2
Rooted
Stock rom & Recovery
Click to expand...
Click to collapse
I removed the account, just to be certain it wasn't doing anything. When I added the exchange account I noticed a quite bad drop in battery time, even though it never showed anywhere. So I tested it overnight tons of times with different settings. And the thing that helped me improve my battery time more than anything else was removing exchange.
nurre said:
I removed the account, just to be certain it wasn't doing anything. When I added the exchange account I noticed a quite bad drop in battery time, even though it never showed anywhere. So I tested it overnight tons of times with different settings. And the thing that helped me improve my battery time more than anything else was removing exchange.
Click to expand...
Click to collapse
well, that sucks, i need my exchange to get through my job, when exchange is behaving well, i got quite good battery life with 1% drop with 1-2hrs with no tweak (stock 4.0.2), now when exchange bug kicks in 1% would drop in around 15min. i can believe Google can still let it happen when we are already in its 4.0
I had this problem using Enhanced Email, and was able to resolve it by disabling calendar sync for the exchange account. As I understand Enhanced Email to be pretty similar to the stock email application, perhaps you might give that a try and see if it improves the situation.
I suspect the battery usage and best settings depend heavily on exchange server types as well. So do your own testing on this
TheJ0hnman said:
I had this problem using Enhanced Email, and was able to resolve it by disabling calendar sync for the exchange account. As I understand Enhanced Email to be pretty similar to the stock email application, perhaps you might give that a try and see if it improves the situation.
Click to expand...
Click to collapse
I've tried Enhanced Email and seems it doesn't support calendar sync fot 4.0 just yet. and i really do need calendar sync for my job.
actually, i also bought Touchdown, but too bad that it can't be integrated into phone's calendar, and the calendar viewing is suck for TD. (i really got spoiled by Calendar Pad / Jorte which can display individual events under month view.)
nurre said:
I suspect the battery usage and best settings depend heavily on exchange server types as well. So do your own testing on this
Click to expand...
Click to collapse
i think so too, but i think if i set manual sync the app shouldn't have that much of wake locks which keep my phone awake which drains battery.
I had my exchange account set to only sync email. I also set the check frequency to manual... the exchange service would still suck up a ton of battery. Every few hours I would receive a notification of new email for my exchange account. WTF? Why was it syncing in the background when I had sync set to manual..?
Sent from my Galaxy Nexus using Tapatalk
NPuter said:
I had my exchange account set to only sync email. I also set the check frequency to manual... the exchange service would still suck up a ton of battery. Every few hours I would receive a notification of new email for my exchange account. WTF? Why was it syncing in the background when I had sync set to manual..?
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
Are u using the stock app? I never have this problem you mentioned at the second part.
Sent from my Galaxy Nexus
ICL53F
4.0.2
Rooted & CWM
Stock rom
I had that bug so I removed and re-added my work exchange account and the CPU usage went away after a couple hours of syncing.
Then I downloaded touchdown and haven't gone back to the stock android email client.
Erukian said:
I had that bug so I removed and re-added my work exchange account and the CPU usage went away after a couple hours of syncing.
Then I downloaded touchdown and haven't gone back to the stock android email client.
Click to expand...
Click to collapse
Sorry I don't understand ur first part? So it had gone to normal after a few hours of syncing you mean?
Done more testing yesterday, after a 12hr working day (no emailing on phone but few calendars added/editted,all time 3G & data on ) , the exchange caused around 500 partial wakelocks (spent around 10min in total) reported by betterbatterystats, causing my phone to drop 1% in around 30min which I've undervolted using JameBond 1.2-307.
Yet, when I got home, I switched to my home Wi-Fi and found that the wakelocks were much less and my battery dropped 1% in around 1.5 to 2hr.
Don't know if the network status from 3G triggered the exchange to drain power from wakelocking.
Sent from my Galaxy Nexus
ICL53F (JameBond 1.2/307)
4.0.2
Rooted & CWM
Stock rom
hongkongtom said:
Sorry I don't understand ur first part? So it had gone to normal after a few hours of syncing you mean?
Done more testing yesterday, after a 12hr working day (no emailing on phone but few calendars added/editted,all time 3G & data on ) , the exchange caused around 500 partial wakelocks (spent around 10min in total) reported by betterbatterystats, causing my phone to drop 1% in around 30min which I've undervolted using JameBond 1.2-307.
Yet, when I got home, I switched to my home Wi-Fi and found that the wakelocks were much less and my battery dropped 1% in around 1.5 to 2hr.
Don't know if the network status from 3G triggered the exchange to drain power from wakelocking.
Sent from my Galaxy Nexus
ICL53F (JameBond 1.2/307)
4.0.2
Rooted & CWM
Stock rom
Click to expand...
Click to collapse
If your undervolted then your battery readout is incorrect anyway. Your battery meter isn't displaying actual battery capacity, it's estimating it based on a scale of power consumption @ X mhz of processor speed within an actual timeframe.
When you undervolt, there's no reference point. Your battery display is somewhat useless. It's why often times the last 10% @ idle seems to last forever.
I have high battery usage from Exchange. It's been a concern of mine for some time. Glad to see others noticing the same thing.
Sent from my Galaxy Nexus using Tapatalk
I am connected to two different Exchange accounts, one 2007 server and one 2010 server. Both set to automatic push. Battery life has been excellent with this phone and getting better. Yesterday, with several phone calls, emails, etc. I clocked in at 1 day 7 hours before I hit the 14% warning threshold.