01-20-2016 08:53 AM
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  1. Bizarro_Prime's Avatar
    Seems better on my L930.
    My L920 seems to be lasting a bit longer too.
    01-12-2016 09:22 AM
  2. TheChazas's Avatar
    On L950, no.
    01-12-2016 10:55 AM
  3. PChem's Avatar
    I think I may have found the culprit of my Lumia 640 battery drain: The 64 GB SanDisk Ultra SD card.

    I took out the SD card, and now I have only lost 2% battery in 2 hours, much more like what it was in WP 8.1.

    So, try a new SD card, or reformat this one in the phone? Why would the SD card cause battery drain in WM10, but not WP 8.1?
    Penguin apple likes this.
    01-12-2016 12:26 PM
  4. indospot's Avatar
    As I have said before (numerous times), battery seems just slightly worse on this build compared to .36. Maybe a hard reset would help, but I don't wanna go there right now.

    Sent from mTalk
    pedmar007 likes this.
    01-12-2016 12:30 PM
  5. realwarder's Avatar
    Thanks, here it is:

    Attachment 120400

    This includes charging for the last 8 hours.

    As I said, battery use states that screen use was almost 60% of use, when the screen was barely on. Most of the drop in battery use occurred during standby, while only checking a couple of texts and battery status every few hours.
    28% Background is pretty high. What apps are using the background power? Have you tried disabling background on those. Also what does your Overview page show?
    01-12-2016 02:48 PM
  6. Marko Marjanovic's Avatar
    Slighty off topic: What about ,,phone" and ,,alarm" in background, what would happen if i disable them.. To bad i can't filter 3rd party apps only.
    01-12-2016 03:01 PM
  7. PChem's Avatar
    28% Background is pretty high. What apps are using the background power? Have you tried disabling background on those. Also what does your Overview page show?
    Thanks for the reply. However, I have solved my battery drain problem. I took out the SD card this morning, and the phone is still at 83% after 8 hours of slight use and mostly standby -- no more excessive drain in standby. That's how it was using WP 8.1.

    How could the SD card cause battery drain? Could it be a slightly defective card causing constant reading and writing attempts?

    I'll try a 16 GB SD card I have laying around at home and see if the problem is reproducible with that one, or if there is really an issue with my 64 GB San Disk card.
    01-12-2016 03:25 PM
  8. realwarder's Avatar
    Thanks for the reply. However, I have solved my battery drain problem. I took out the SD card this morning, and the phone is still at 83% after 8 hours of slight use and mostly standby -- no more excessive drain in standby. That's how it was using WP 8.1.

    How could the SD card cause battery drain? Could it be a slightly defective card causing constant reading and writing attempts?

    I'll try a 16 GB SD card I have laying around at home and see if the problem is reproducible with that one, or if there is really an issue with my 64 GB San Disk card.
    Wow. That was a good find!

    A defective card could potentially cause high drain. I'm also very careful about sourcing SD cards. Got some fake ones online before that were unreliable. Make sure you source well in case that's part of the issue too.
    Penguin apple likes this.
    01-12-2016 04:20 PM
  9. D0gsballs's Avatar
    Mine seems to have improved on my 930, but it's still terrible. Going to let it drain out and charge and see what happens. If it will seems crap I'll hard reset
    01-12-2016 05:03 PM
  10. rgc6789's Avatar
    My Lumia Icon has greatly improved on this build. Been off the charger for 8 hours, used it to read news for about an hour at lunch, 2 or 3 phone calls. Average usage day - still at 66%. Prior build would be at 30-40% after 8 hours.
    01-12-2016 06:23 PM
  11. Captpt's Avatar
    I don't understand why some people seemingly get great battery life on the same hardware, when other people do not.
    Really, makes no sense.... There was nothing mentioned in build .63 about tweaks to improve battery use, I had .29 & .36 on my 640XL and battery life took a serious hit, even though I'd love to get my 2 Week old 1520 on W10 I refuse to give up great battery life on 8.1 for barely or not getting through the day on a full charge, I can use my 1520 as much as I want through the day and never worry about it running low, a luxury I won't give up, it's one of the big reasons I came back to Windows Phones 😊
    01-12-2016 10:49 PM
  12. Captpt's Avatar
    I don't understand why some people seemingly get great battery life on the same hardware, when other people do not.
    REALLY!! Can't understand how differences can be so sporadic??
    I had .26& .36 on my old 640XL and took a big battery hit with both, with my 2 week old 1520 I get great battery life on 8.1 and even though I'd love to put W10 on it I refuse to sacrifice never having to worry about my battery getting low through the day/night just to have W10!! I've used the crap out of my 1520 on 8.1 all day/night and never had to charge it,that's with never having to turn anything off (wifi, bluetooth, location, weather, background apps and Glance is set to Always On) my 640XL was practically the same way until I put W10 on it.. It's just a luxury I will not give up, its one of the main reasons I came back to Windows Phones...
    01-12-2016 10:58 PM
  13. D0gsballs's Avatar
    Mine seems to have improved on my 930, but it's still terrible. Going to let it drain out and charge and see what happens. If it will seems crap I'll hard reset
    Battery life is just being weird. At the time of writing my first post I had about 50% charge left (after having to top it up a bit). Left it over night and wake up to 10% battery left. Battery Saver cuts in at 20%. So I thought I'd leave it to completely empty and it gets to 4% before leaving work. Tunes on the radio were poor so thought I'd stream music over Bluetooth (my phone was already connected anyway) part way through my journey. I get to work half an hour later and it's down to 3%

    It's finally cut off - I think Fitbit might be a big drainer. But will completely charge it through wired and see what happens by the time I get home. Suspect a hard reset might be in order though.
    01-13-2016 03:24 AM
  14. PChem's Avatar
    Really, makes no sense.... There was nothing mentioned in build .63 about tweaks to improve battery use, I had .29 & .36 on my 640XL and battery life took a serious hit, even though I'd love to get my 2 Week old 1520 on W10 I refuse to give up great battery life on 8.1 for barely or not getting through the day on a full charge, I can use my 1520 as much as I want through the day and never worry about it running low, a luxury I won't give up, it's one of the big reasons I came back to Windows Phones
    As I noted above, I figured out the battery drain problems with my 640: It was the 64 GB micro SD card.

    I put a spare 16 GB micro SD card in, freshly formatted by WM10. The phone has lost only 2% battery overnight, so it seems I am back to WP 8.1 levels of battery drain.

    The strange thing is that I used the same Sandisk 64 GB card in my laptop for 2 years without problems. Maybe I'll try to format it in he phone and give it another try.
    Penguin apple likes this.
    01-13-2016 04:49 AM
  15. captaincalamity's Avatar
    I guess it depends on each individuals usage and which phone they have, in my case I was a great believer in WP8.1 on my L930 and tried many times the WP10 builds, but not until the latest .63 update can I safely say its a complete and worthy upgrade from 8.1, the latest build is as fast and fluid but with so many added features and benefits, which also now brings improved battery life, im not sure its massively improved than 8.1, but for my usage it certainly seems better.
    01-13-2016 05:46 AM
  16. Simon Hinton's Avatar
    Estimating 12 hours left on 52% for my Lumia 735, after being off the charger for 11 hours. Not what i was achieving under WP8, but i'm not too fussed. I occasionally get a bit of lag on my start screen, so the CPU must be doing something in the background that's chewing through the juice.

    What I am a bit puzzled with is charging speed - it takes about five hours on a 750mAH charger to charge this thing, when it only used to take two and a bit on WP8. Has anyone else noticed this? I'd love a diagnostics app that shows battery discharge in detail (like the old one on WP7 did) just so I could keep a closer eye on it.
    01-13-2016 07:30 AM
  17. bburgarelli's Avatar
    I'm getting the worst battery life out of a L1320 I ever had. Already had these problems with other builds, sure, but never on this level.
    In normal usage, the L1320 last for 36 hours or more. Now I'm lucky if it survive my work time until I get home at night. Had to go to other city on monday, and the 83% battery survived for 25 minutes on Waze.

    Felt like I was back in the 80's, had to stop to ask for directions.
    Wes Smith and pedmar007 like this.
    01-13-2016 10:38 AM
  18. Gautam Bhatnagar's Avatar
    I wanted to check how much power my 1020 used when in idle. Very few apps are running in the background, and to keep things simple I disabled WLAN and mobile data, only 3G enabled. 10 hours without using the phone.

    WP 8.1: Battery dropped 0.76 % per hour.

    Upgraded without doing a hard reset first, the result was so good that I doubt it could be any better.

    10586.63: Battery dropped 0.59 % per hour.
    damn, i wish i'd measured my battery before i upgraded today... battery is draining so quick for me... L1020 and no hard reset! i wonder what the difference in our mileage is?
    01-13-2016 04:31 PM
  19. EspHack's Avatar
    nop, my 928 only returned to normal 8.1 denim levels after I stopped using messaging-skype and removed it from running in the background, so back to original-just-as-bad skype app

    the new .63 update seems to make the actioncenter as smooth as it was on 8.1 SOMETIMES, not everywhere
    01-13-2016 04:47 PM
  20. SL2's Avatar
    damn, i wish i'd measured my battery before i upgraded today... battery is draining so quick for me... L1020 and no hard reset! i wonder what the difference in our mileage is?
    Yeah, go figure. I was prepared to do a hard reset but the result really surprised me.

    My procedure for upgrading from scratch, the point is to carry over as little as possible from the old installation:

    1 - Back up (even locally with contacts+message backup incase it's the online backup that messes up things)
    2 - Uninstall all apps
    3 - Hard reset
    4 - Uninstall all apps
    5 - Update
    6 - Restore locally, and adjust all settings manually, because there are several new settings to go through in W10 anyway, and to avoid issues mentioned.
    7 - Install apps, without the online restore you have to do it manually.
    8 - If you still have problems with the battery, try what has been suggested:

    From the 950 battery thread: http://forums.windowscentral.com/mic...ml#post3337401

    These are just suggestions for what to try out, it's not like you should have to disable everything.
    - Use a new SIM card.
    - Perform a hard reset if you haven't done it yet.
    - Don't restore your settings from a from a WP8.1 backup.
    - Remove the SD card, it may be faulty.


    Turn off:
    - Cortana
    - Glance
    - Hello
    - 4G LTE
    - Bluetooth
    - NFC
    - Location
    - Background data for apps
    - "as items arrive" in email sync settings
    - Feedback & Diagnostics
    - Page prefetch in Edge
    - Mobile hotspot (besides the one in Action center)
    theboyknowsclass likes this.
    01-13-2016 04:52 PM
  21. ericcoxtcu's Avatar
    I have a 950xl. I was having decent, but no great battery life on .29. On .63, it has been excellent. I am using the glance screen, though I've turned off Hey Cortana . Prior to .63, I was losing a great deal of power even on standby. With .63, I can make it through a full day of work (I have 3 email accounts checking, including an exchange account that I have set to retrieve as they arrive, the most power hungry setting). Today, I tracked my ride to work with Runtastic (uses GPS) and used very little battery.

    So yes, my battery life has been far better with .63. I liked my 950xl before, and I am extremely satisfied with it now. Box, Dropbox and OneDrive all play very nice with office, including attaching files to email. Continuum has actually proven more useful than I expected, though running it over a wireless display adapter does burn the battery pretty quickly. The only other app that really eats battery for me is the Edge Browser. Web browsing seems to use batter faster than even using Netflix (an hour of Netflix costs me 10-13% battery).
    01-13-2016 09:00 PM
  22. SL2's Avatar
    The only other app that really eats battery for me is the Edge Browser.
    What about other browsers like Opera, UC and Maxthon?
    01-13-2016 09:24 PM
  23. ajayden's Avatar
    The only other app that really eats battery for me is the Edge Browser. Web browsing seems to use batter faster than even using Netflix (an hour of Netflix costs me 10-13% battery).
    Edge will be better in the future builds as they are building this as the main browser.
    01-13-2016 10:54 PM
  24. sodapopjunkie's Avatar
    My battery life is far worse with this build. I'm having to charge at lunch and again at 4-5pm just to keep my phone from shutting off. On the previous build, I could easily get a full day and still have 30%+ battery life left. This is on an 830 and I did a hard-reset hoping it would make battery life better. The battery life on this build for me is comparable to some of the really early w10m builds.
    01-13-2016 11:01 PM
  25. ZeMintCool's Avatar
    Great or closer to 8.1 battery performance since .63 on L925 & L1520
    01-13-2016 11:30 PM
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