10-20-2015 10:13 PM
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  1. Sedp23's Avatar
    Heavy use I'm getting like 4 hours. I can probably squeeze 6-8 with medium usage



    10-19-2015 12:29 AM
  2. NeoGohan's Avatar
    Very horrible for me on a Lumia 1520. 3-4 hours of light use and it dies. I can barely get it to charge at a fast rate either. Have to go back to 8.1 for this to be usable for me.
    10-19-2015 02:34 AM
  3. Maurizio Troso's Avatar
    Very horrible for me on a Lumia 1520. 3-4 hours of light use and it dies. I can barely get it to charge at a fast rate either. Have to go back to 8.1 for this to be usable for me.
    I guess your lumia still not updating all core apps automatically. After this, my Lumia came back to its orginal battery life and cpu temperature. Double check your sd card also, inserting it in a pc slot and not using your phone and a usb cable!
    10-19-2015 03:44 AM
  4. Aziz Abdurachman's Avatar
    Heavy use I'm getting like 4 hours. I can probably squeeze 6-8 with medium usage
    Is the background apps control really work in this build? I remember in 10536 even I not allowed it to run in background I still receive notification and updating live tile in real time.
    10-19-2015 06:33 AM
  5. nasellok's Avatar
    Same on the Icon (929). I wish we had Task Manager/Resource Manager so that we could ID what process is exactly that is killing the batteries. Maybe after those programs get universalified.
    I have the Icon, basically the same as the 930............make sure you turn off Cortana, update all the apps in the store, and soft reset your phone. My Icon is now lasting 1+ days again........
    10-19-2015 08:06 AM
  6. greedo_greedy's Avatar
    On my Lumia 822 with build 10549 the battery has improved lots. I'd dare say close to 8.1 levels.

    Initially, the battery would hold but after it goes under 80% it would start draining like crazy. A hard reset fixed it.
    10-19-2015 09:54 AM
  7. Allen Rhodes's Avatar
    L1020, off charge at 645a, now 10:08... 66% and ive received one text. Again, to the point we shouldnt need to cripple the device by disabling all the unique features that make WP10m great. Step it up MS. Seems to be the Nokia phones with issues, or is it just me?
    10-19-2015 10:09 AM
  8. jisto1215's Avatar
    Anyone tell me how is the battery life when compared to build 10166
    10-19-2015 10:16 AM
  9. Mohan_vk's Avatar
    I'm using latest build on my Lumia 730 for last two days. Battery life is good like 8.1. I like tablet mode and no loading issue like previous build.
    10-19-2015 10:20 AM
  10. Aamod Potdar's Avatar
    I dont know if Cortana is really at fault but battery backup has really increased on my Lumia 820 after disabling Cortana.

    Initially , battery performance was terrible. It wouldnt even last for 5-6 hrs (lumia battery is 2.5 yrs old) . I had decided to go back to 8.1 only due to battery issues as I couldnt use it as my daily driver. But I stumbled about Cortana issue on this forum and I disabled Cortana last night. After that I have almost got 20 hrs of battery backup. And I am amazed. I had charged my phone to 100% at around 10 PM last night and switched of mobile data and wifi. Next morning 8 AM , there wasnt even 1% drop in battery. I switched on mobile data and Wifi , so from 8 AM to 8 PM tonight I had 15% battery left. Simply amazing.
    10-19-2015 10:39 AM
  11. 01mggt's Avatar
    Since updating all the core apps yesterday my battery life on my icon is now massively better
    10-19-2015 01:21 PM
  12. 01mggt's Avatar
    I should add that I did not do a hard reset at all and have Cortana enabled
    10-19-2015 01:22 PM
  13. Blenyc's Avatar
    Nokia 1520 here without Cortana and all applications turned off battery runs out pretty fast even when you dont use it.Already reset it twice.Battery usage doesnt show any application draining battery or email stuck.
    10-19-2015 01:59 PM
  14. Aeosgames's Avatar
    On my Lumia 640 battery life was HORRID on Build 10536. But now with build 10549(With Cortana off) I go through a whole day from 10 AM to 12 AM with mid-heavy usage and end day with around 46% battery. Not bad compared to Crapple products. But pretty good compared to 8.1
    10-19-2015 02:31 PM
  15. falconrap's Avatar
    My Icon is running with my backup restored, with Cortana on, location services on, everything the way I ran with 8.1 and the battery life is on par with 8.1. Far cry over the last build. Now Gabe did say that the Cortana bug may affect users, which means it also may not. My route was 10536>8.1>Restore backup>Denim>10549. No hard resets involved. I did let my phone do all of its background stuff, once 10549 was loaded, during the night while I slept; i.e. I didn't mess with it until it was completed.

    So far this build has performance close to 8.1 with a few bugs here and there, at least for me. YMMV.
    10-19-2015 02:35 PM
  16. Christian Pichuant's Avatar
    Very horrible for me on a Lumia 1520. 3-4 hours of light use and it dies. I can barely get it to charge at a fast rate either. Have to go back to 8.1 for this to be usable for me.
    Same for me!
    10-19-2015 02:48 PM
  17. Montpbm's Avatar
    So bad! It's ridiculously horrible! So bad it's funny.. I have to keep it connected almost all day..
    10-19-2015 03:01 PM
  18. MACRM32's Avatar
    FB messenger still makes my phone catch on fire. Other than that, seems to be on par with a fresh 10536, aka, just shy of 8.1 levels.

    But seriously, if anyone on FB's team is out there... Please get the universal app out ASAP. My phone can fry an egg
    10-19-2015 04:28 PM
  19. purevibz's Avatar
    Same here for me, I'm dropping 10% an hour..... it's really bad.
    10-19-2015 07:39 PM
  20. hellstrm_robert's Avatar
    I have much better battery life now on 10549 compared to 10536. also apps opening much faster and overall much smoother performance
    10-19-2015 10:28 PM
  21. Aldrin Divera's Avatar
    Better than 10536, but tweeter and fb messenger still get my 920 birnong hot..
    10-19-2015 10:57 PM
  22. ashish purohit6295's Avatar
    comparing to build 10536, battery life has improved lot
    in previous build, the battery drop would be 7-8%/ hour on stand-by
    now it's reduced to 2-3% an hour
    Aziz Abdurachman likes this.
    10-20-2015 12:41 AM
  23. Ivaylo Badinov's Avatar
    Please note, that upgrading to this version requires complete wipeout of your phone, which means you remove all apps that work in the background and use battery. So after upgrade you might not have the same setup (you may miss to restore some apps or settings) and your test could not be relevant.
    10-20-2015 04:23 AM
  24. ScubaDog's Avatar
    I only get about 4 hours on a LUMIA 635. This is under "normal" use - mostly sitting on my desk where I exchange text messages, some emails and maybe 15 minutes of streaming iHeartRadio during breaks. It's all very exciting. Not.
    10-20-2015 08:01 AM
  25. Maurizio Troso's Avatar
    I only get about 4 hours on a LUMIA 635. This is under "normal" use - mostly sitting on my desk where I exchange text messages, some emails and maybe 15 minutes of streaming iHeartRadio during breaks. It's all very exciting. Not.
    Disable first of all Cortana, Store, Facebook app background and anything else you don't use. My 520 returned to it''s original one day lasting
    10-20-2015 08:11 AM
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