Exchange services Battery Drain on KitKat - Xperia Z1 General

I would like to share a solution that worked for me.
Understand that this worked for me, I am not saying that this will work for you.
I was suffering from a huge battery drain, I noticed that it was coming from "Exchange Services" (I have an Exchange account on the default Email App, specifically an Outlook.com account). The Exchange services were keeping my phone awake all the time and using wifi/mobile data.
What I did was disable Tasks syncronization (I kept email, calendar and contacts synchronization active). Then I changed my syncronization interval from automatic (push) to manual, this did Exchange to stop any data activity, after this I changed back the syncronization interval to automatic (push) again.
So the problem I found is that Exchange services couldn't syncronize any Tasks, it was just trying... and trying... while this my phone was being awake, downloading a lot of data (almost 1MB per minute) and draining my battery (1% every 2~3minutes).
So if you're having battery drain and uses an Exchange account on your phone, you won't get hurt for trying this

Related

activesync with google exchange service

I always uses google services. Including google calendar / email, etc.
I have set up my wm6.5 with activesync and it sync my email and calendar fine.
However, I found that the activesync will sometimes hog up my mobile's CPU for more than half and hours. I felt the phone unresponsive and heat up fast. I can hardly switch on the task manager but I managed to find the responsible program for this - activesync. It uses up all available CPU for a long long long time. Some times it drains all the battery and my phone just shut down itself. During the time, I will not able to start the activesync client and soft reset is the only solution.
I used to have activesync's schedule set to "As it arrives" but I turn it to like by "2 hours" now. Thing is now better but it still happens.
I can live with high cpu loading while it was checking mail or sync with calendar but I certainly not convinced that it required more than 10 minutes for that.
Please share your experience.
I have tried Google Sync two times. After a couple of syncs that worked OK an error appeared, something like a configuration change in the server, sync error. Then when I synced, all my calendar items were duplicated and all my contacts reversed First Name with Last Name. And the phone was set to overwrite the server if something is wrong/error. Thank to the backup.
Okay.. gotta to change the information. It is NOT related to google service. it is solely the problem of activesync. I have reset my phone and not setting up any sync services. But the activesync kicks in again and once again used up all CPU time. Even with no internet connection. (Radio Off)
This is a ****......... I hate it.
Hmmm... I've never had a problem using Activesync+Google with Laurentius's Rom.
I sync Google Calender with Activesync, contacts with Microsoft MyPhone, and email with my own Pop3 provider (Fastmail).
Good luck

[TIP] Disable Gmail Sync for better battery life + Discuss

Hi all,
A few days into my Desire Z experience and I'm very happy.
However, battery life is somewhat low, probably because of the "wow" factor of constant playing but dropping 20% overnight was a bit perplexing, even my Windows 6.5.x phone dropped < 5%. I have only installed about 3 apps so far and they're not sync ones.
Playing about reveals that in;
Settings -> Accounts and Sync -> Google
Sync Contacts
Sync GMail
Sync Calendar
Are all checked on and automatically and periodically syncing.
Not using any of these services and HTC Sense requiring the global automatic sync, simply untick all these services. Hopefully battery life will be improved...
It has been suggested in other forums while I was searching for my issue that its much more battery friendly to add your GMail account to the mail app and set a schedule instead of relying on Sync.
Regards
Craig

Extremely slow email Sync

Running stock Nexus S with background data and auto-sync both checked in settings. I'm running the mail app not the gmail app and have 3 accounts setup on IMAP with 15 min sync. Weather/news widget also does not sync. I have it set to every 6 hours and when I just checked it said last update 18hr ago??
1. It does not sync in 15
2. When I manually sync each account it is way slow
3. Weather/news sync also slow
I think the phone has some confusion running wifi + 3G
Any suggestions?? Others with similar issues? I'm used to instant sync on IMAP on 2G!
not a single reply??
I don't use the mail app (Gmail app) but I've heard that not using push when using IMAP leads to the phone failing to sync and draining the battery really fast eventually. It happens when it tries to sync during one of the scheduled syncs and there's no service at the time or something, and then it goes fubar. Not sure if they've fixed this, but it was doing it on my friend's Nexus One until I changed it to push.
Anyway, is your battery noticeably bad for some strange reason? =)

[SOLVED] Massive battery drain from (exchange) calendar sync

Hi there,
I finally fixed my battery drain problem, thanks to LiverpoolFCfan (http://forum.xda-developers.com/showthread.php?t=1210184).
The automatic calendar sync tries to get appointments for the birthday entries in the contacts. If the calendar sync doesn't find any matching appointment, it will enter a loop where it constantly polls to find these appointments.
I just delete all Birthdays from my contacts for diagnosis purposes, and now it's all fine
I have less than 1% battery drainage in idle now with push main enabled
Typical indicators:
- sync symbol for calendar (vanishes after some secs) in Settings->Accounts->(Exchange Acc)
- High Usage of "Android OS" and "Mail"(strange, I know) in the Battery Stats
- Battery drain vanishes if automatic calendar sync is disabled
I don't know, if it's only an Exchange Sync Bug or affects the Google Acc. as well , as I don't give Google my contacts' data
Hope this helps anyone.
Diewi
Huh, good to know. I'll have to play around with it. If it's that big of a problem I guess we can always disable it on days we need the extra battery and stick with web apps/book mark for Calendar information.

time triggered sync?

Hey
is there a possibility to sync time triggered all those stuff which syncing several times per day such as google+ , Calendar, Contacts a.s.o. ??
Hi
loco09 said:
Hey
is there a possibility to sync time triggered all those stuff which syncing several times per day such as google+ , Calendar, Contacts a.s.o. ??
Click to expand...
Click to collapse
Syncing is done via Push now. Your phone doesn't periodically go off and sync every few minutes, instead it waits to be told it has something to sync, this is all done through Google Play services, so is battery friendly. If you get lots of notifications this will cause extra battery drain as of course your phone is constantly being nudged to wakeup and alert you to something, so options are to uncheck these from syncing from the Accounts setting page.
Regards
Phil
Thanx.
What u wrote is correct but nevertheless i want to sync only ones a day.
This without doing it manually by going to the Settings...
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