Poll – How is your battery with Windows 10 Mobile build 10536?

We are just a couple of days in with the latest release to Insiders of Windows 10 Mobile build 10536. We have already asked how satisfied you are with 10536 and so far, 50% are underwhelmed and 38% are really happy. That leaves just 13% are unsatisfied with the release. That poll is going on for a few more days, so if you have not voted already, go ahead and do so.

Next up is battery life. How has yours been? Factoring out playing with the OS more, do you feel it is the same, better or worse?

Granted, what we're asking is unscientific, and there are dozens of variables at play, but off the cuff, let us know what you think in our new poll.

Presumably, the final release to your phone would benefit from new, updated firmware, but so far Microsoft has been quiet on that part of the upgrade.

Take our poll and sound off in comments! If using our app, just swipe to the right and choose More > Show in browser or just navigate to m.windowscentral.com/poll-10536-battery

More coverage!

Need even more? Here is all you need to know, including some of our helpful guides to get you through this process!

Here are the known issues in Windows 10 Mobile build 10536 {.cta}

Daniel Rubino is the Editor-in-chief of Windows Central, head reviewer, podcast co-host, and analyst. He has been covering Microsoft since 2007 when this site was called WMExperts (and later Windows Phone Central). His interests include Windows, laptops, next-gen computing, and for some reason, watches. Before all this tech stuff, he worked on a Ph.D. in linguistics, watched people sleep (for medical purposes!), and ran the projectors at movie theaters because it was fun.

314 Comments

Not great about 30% less than 8.1
Yeah, I'd say that is about what I am experiencing too. Luckily the 1520 has a beast of a battery ;)
My 1520 has been draining fast. Although things are running well. I've had to do several soft resets and the phone will heat up, but I'm loving it to say the least.
Same to my 1520 too... Draining so fast. I sleep with 100% now.. 10% :c
My 1520 doesn't drain as fast as yours. Vibrate option on capasitive buttons doesn't work any more. Do you have similar issue? If not I will reset my phone.
Capacitive buttons are vibrating for me. Battery life is definitely worse than Windows phone 8, but not truly terrible probably last a day rather than two days
That is a 100% drop in a battery life... I would say that is pretty terrible ..
Actually its a 50% drop. 100% drop would make the phone incapable to come off the charger without turning off. (100% drop of 2 days would be -2days of battery life) :)
I had the same problem! Resetting my phone didn't help. So I had to send my phone back to Microsoft for a repair. But Microsoft can't solve the problem. So I get a free offer for an lumia 930 black, white, green or orange. I hope it will arrive today for the end of the day.
I noticed other 1520 users having huge drain.. My 1520 seems a bit better on day 2.. First day of build was draining constantly until I reboot phone 3 different times and so far hasn't acted up and battery stopped draining.. Fb messenger does put a drain on it because its constantly waiting for network which it never did that in previous build.
I was in the same case i had to hard reset twice and now it is better than on Windows 8.1.
Very shitty!
Battery of my #1520 is worst. Charging 2-3 times a day.. After seeing battery performance on #1520 didnt updated on my #1020 as it got small battery :) If I update my #1020, i will always need to to connet my mobile to USB charger :P Any tricks to improve battery life? I have already disabled Glance.
So I'm running this on a 1020. Battery life has been just as bad as on 8.1 which this device, which was weak at best. Reading all this, even though I know the negative comments always will be more in quantity than the positives, I don't think this OS will touch my 1520 until there is device specific firmware available. My1520 goes for 2 on moderate use and 1.5 on heavy. I can live with 8.1 to get the battery life i need.
Question: How is your battery life with build 10536 Answer: I don't know, I can't see past all the bugs and slugishness
Shots fired Posted via the Windows Central App for Android
I want to add that the WC app is very laggy with this build. Didn't happen with 512
Exactly!
yup ... i agree on that .. the main news screen takes a lot to load
What us 1520 owner cant forget is that our phone are over two yeas old so our batteries have a lot of miles on them already. I'm updating mine now and will just put up with the battery drain issue until we get, "flagships".....sarcasm
Lucky! Lol. Ya I would say the same. About 25-30% less than 8.1...and 10-15% less than the last build??? Maybe
Hi Daniel, I seem to be having problems with my Lumia 1520 with WiFi. I can't turn it on. I'm on previous build and would like to move to this newest build 10536. Thanks in advance.
my lumia 1520 has been draining battery a lot faster in wm10..light continuous browsing for 1 hour and battery down by 13%+
True. I'm using the 1520, as well. I've had my phone off charger since last night and it is still well over 70%. Granted, I haven't done much with it, except a couple games of Words with Friends and text throughout the night.
Oh, and some music streaming, while I was on the train. I just hope the next WP has just as good or better battery life.
My battery life has been terrible. It drained to 5% from 100% after about 8 hours of just sitting in my pocket, with maybe only about 15 minutes of actual use of my phone. The performance of the build, however, has been great. Lumia 820.
Fresh install?
I have the same.
Battery drains really fast on my 820 too
That makes me jealous. My 1520 is getting about 30% of what it used to instead od losing 30%. I used to go a day and a half easy. Now I'm lucky if I get half a day doing nothing.
I got no problem on me 1520...I have tons of shit running and I work it like a hooker...
Same here, Also it seems that Edge drains the bttery very fast.
10536 Battery life is horrid on my 640 and disastrous on my 1020. ... and that new Skype messaging app turns my all day battery life sub 4hr
Yeah 40% less for me on an average if compared to 8.1 on my 930 :( . Fix that and we are ready for release.
Not yet, still lots of bugs.
Today 7.30 AM to 2.15 PM I'm at 64% that is kinda decent. With 8.1 I would have had like 75% at this point so the situation is getting better for no apparent reason. Some background service that is not working today? Who knows...
Same here. Last build I would get home from work with around 70% now 38-40%..Horrible!!!!
Just checked battery saver and skye messenger used 38% today...wow, disabling that right away.
Went from 100% to 60% in about 2-hours. Not good.
Glad I'm still on 8.1 then. I already have to charge my 1020 almost twice a day, it'd be horrible if the battery would drain any faster...
The battery life for me is bad. It's almost dead after 8 hours of average use not too much being done. I used to get a day and a half of use ob my icon on 8.1. Sad face.
Exactly this, now I have to make 3 charges a day when I was doing two on my old 920. Poor thing, it survived the 8.1 preview battery troubles and now this :(
I found the problem, background app setting didn't really work, which was useful like in WP8.1
My 930 sucks now! Have to charge up to 3x per day. Not to mention that ia getting hotter than ever now. I'm even contemplating a hard reset.
I'm confused, I don't have any of your issues on my UK varient, I'm running 2 days now, I did factory reset too! I reckon if I removed Facebook might get 2 more, not like the 5 days on 8.0/8.1 with no facebook
I had a huge problem on my L920 with the battery. 4 hours from 100% to 10% on the last update. Yesterday I managed to update to the last build 10536 and I still had the same problem. I did a hard reset and after a few hours of installing apps I can see a huge difference in the battery behaviour. I think that this saved my battery. :)
Facebook Messenger is a horrible drain on battery. While battery life is not as good as WP8.1 denim, it's much better than the previous Win10M build.
You hit the point :P
My Lumia 1520 constantly ran hot and drained the battery. I upgraded from 8.1 and did a full reset and still had this issue. Build was much faster than any other I've tried though.
Same here. The phone can get uncomfortable hot even when not using it.
Better after I pulled sim card & went Wi-Fi only but that was previous fast build
Really bad. Down to 16% in less than 8 hours on my 1520.
This is my experience on my Lumia 820 as well.
Are you going to roll back to 8.1 because of the problems, or are they manageable? I'm asking because I have an 820 as well
If it makes you feel better, I got down about 60-80% easily during that 8 hours on my 1520.
It won't make him feel better, he loses battery faster than you :P
I must be the lone wolf exception. My 925 is down to 40% after 12 hours of moderate use (5 AM to 5 PM). For me, battery life is almost as good as 8.1 cyan; I had battery drain issues with denim.
Why is the majority either underwhelmed or not satisfied?
Probably because they were expecting more (as in, more stability, performance, bug fixes, polish) after a month without new builds. So was I. MS really needs to step up their game, time is getting short (though at this point I suspect what they will do is produce the Lumia 950 (XL) with a preview build so you will get a day one patch aka build on release).
Wait till post release for features. Right now I'm pretty sure their fixing all the bugs formed from features for the release (oct/nov). The beauty of 10 is that mobile and desktop is going to keep getting features that people want (ex. Edge getting web notes and extensions) But Microsoft definitely needs time to fix the great slew of bugs that come with the technical preview before the release. Sorry if I sound byast. I just hope this explains what's going on.
I'm not even asking for features at this point (though honestly I'd like to see the old "quite hours when busy in calendar event" feature back) but I'd like to see some polish like transparent Action Center and volume controls, slide-up animation for Cortana (as in 8.1) and also some of the settings are still not right (storage and mobile hotspot are still separate apps instead of part of the settings app).
Likely because it didn't really bring any new features (granted, that was not a surprise either), so it's hard to get excited over stuff just working. That's like expecting the baseline. I think it's still a good build, but it's just not mind blowing either. It's ultimately all about expectations, though. Some people just have unresonable ones.
Unreasonable expectations?!
Windows Phone has had 3 major reboots (7, 8 & now 10). It has negligible market share, in a market that is far from standing still.
Microsoft needs to be making waves and really building some positive press. In truth, they should have had a mobile OS released at the same time as Windows 10.
This OS has no momentum at the moment....and what momentum will fizzle entirely with Microsoft's glacial approach to building this OS.
Expecting a functioning/exciting OS just a few weeks from the launch of the new 'flagships'. Nothing unreasonable about that.
"quiet hours when busy in calendar" is not unreasonable. Removing it was unreasonable. If they don't bring it back ill lose my shit. Haha.
Unreasonable? The baseline for most is likely as good as or better than 8.1. When it has a way to go to even meet that mark, it is not unreasonable to be underwhelmed with the current status of the soon to be released W10M.
It's unreasonable if it doesn't match his expectations.
I think you read that wrong. The majority are either underwhelmed or really happy.
38+13=51=majority
Underwhelmed and unsatisfied have more in common.
Well with permissions scattered all over system settings I can see why battery sucks we need a permissions system like bb could be accessible by app list context menu for each app
Mine hasn't been bad for the most part, but it's definitely not great yet. I'm not having drain when idle which is excellent. But some apps have been sucking it down.
How about wireless charging? Still works?
It never not worked?
wireless charging for some reason makes my 930 waaaaay more hotter than wire charging. expeirenced this the most on 10166... after that build, only the first day of 10536, I cant to find a trend.
AFAIK, here's no software involved, so yeah; works as expected :)
Thanks. I have not been participating in the Windows 10 insider beta test so was just wondering since I love this feature so much.
58% 9hrs+ of padora on WiFi at work and about 15mins of web surfing.. L640.. I'm having no differences..
58% 9hrs+ of padora on WiFi at work and about 15mins of web surfing.. L640.. I'm having no differences.. Plus Bluetooth always on for car kit so if that doesn't kill it nothing will..
I'm with you. I'm at 49% after 8.5 hours with moderate use (some streaming of audio/video + news, whatsapp, downloaded some apps, etc). With BT on for MS band
Not as good as 8.1, but honestly not that much worse. Running on a 925, and I can easily last from 6-4 playing games occasionally with bad service without a charge. So I'm happy :D
Same here with my 925. I stream music on my phone for about two to three hours and have 40% battery life a after being used for twelve hours.
Can't really say as come November my 920 will be 36 months old or thereabouts. Battery has been decaying quite drastically over the last few months, either that or my charger is acting up as I have been using the same charger all this time.
When WP7 was in development, Belfiore and the whole team had a mantra, "The battery is king on Mobile", which is why they opted for silverlight apps and took away all of the battery draining features of WinCE. Since the two teams merged, that mantra has been lost.
This^^
@deadonthefloor. Also they were adamant about a consistent experience... that has also been lost in order to make the OEMs happy and get them to reuse their Android handsets. In some cases some have literally just done that lol...
My battery indicator or battery itself has issues.. One minute it ll show 9% and after plug it in it will say 100 or 90 or 80 %.. I am not sure what's wrong with my battery, can't say for sure it's because of builds though this problem started with 512.. Posted via the Windows Central App for Android
Same for my Lumia 822 on 8.1. It'll be 40%, then it tells me I need to charge, then it's okay.
Good to know, I am not alone and I think now I can blame preview builds.. Posted via the Windows Central App for Android
Battery seems to be nearly on par with 8.1. One thing, though, is that the icon doesn't update as accuratelly as it should. At say 55%, it makes it seem like 70, only updating to half when hitting 50.
Battery fair. Overheating has been an issue.
Terrible compared tro the last build (which was already pretty bad). Sitting in my pocket all day, with data off and zero usage (no texts or calls), my Lumia 920 drops to ~50% after 6 hours.
Try going back to 8.1 and upgrade again. I know someone who got way better after a direct upgrade on thier 920.
Tried that with the last build, and it didn't seem to make a difference. But I may try that again (or a clean install).
Your 920s battery may be nearing the end of life to where it will not hold a charge as long as it used to and any additional background tasks from Windows 10 may only make that more noticeable.
I realize that. But, when I've tested it back on 8.1 the battery life is significantly improved (this was a week or two ago).
Lumia 1520 is running less hot. Both 1520 and 830 are experiencing LESS drain. I am happy with this build.
I guess i don't expect much....... I have been using W10M as daily driver on all phones (including 930) for a couple of months.
Interesting to note that the Windows Central app is noticeably slower on this build.
Last point is the same on my 1520.
Yep, takes ages to load and get out of articles in my 640.
Huh, I noticed the WC app is slower on my phone as well
Mine's running fine, I have no issues, I would say this build is perfect for release
Battery life decent but overheating is still an issue . Hopefully these issues get fixed before the WP rollout as I prefer stability over beta releases .
Wireless charging really slow on my930
Is it me or is anyone else having trouble actually using the poll in edge? Regardless of mobile or desktop version I cannot choose one of the options...
For me the battery life seems worse compared to build 10512, but that might have been the Messaging/Skype beta which I have uninstalled in the mean time... Ley's give it another day
Could be better :(
Battery is fine but, the windows central app loads very slowly. Including both the splash screen & any article I open up. Anyone else has the same issue?
Yes. It takes about 30-40 seconds to load the app and about 5-15 seconds to load an article.
I have the same issue with windows central. Slow as molasses opening articles and starting the app.
reinstall the app to fix the splash screen issue
That's interesting.. On the last build I didn't have a splash screen on my icon. Just loading with the animated dots till the app opened. Current build I have the splash screen back and seems to load faster.. And edit yup I reinstalled the app.
I feel like it's significantly worse actually. My 1520 has been an all day phone with every win 10 build up until this most recent one.. and it's definitely running hotter. Granted I'm only a couple days in, but it's noticeable. As of now I'm at 20% from full charge this morning and my day is half done. Literally the first time for that since I got this phone. My battery on my 1520 has always been phenomenal compared to every other Windows phone I've had by a long shot. We'll see how it goes, but for now it's not great.
And besides that, and the camera lacking some Lumia 5.0 functionality, I'm very happy with this build so far.
My battery life was very poor until I did a reset. A pain to reinstall apps with a medium speed connection, but is much better now. Probably a 20% decrease in battery life. I will still get all day use from my 2520.
1520!!!
I think I'm going to get a day and a half instead of 2 on 640xl so 25 percent worse I reckon (one day in so far and on 35). I've got a 430 but not sure if w10 will even work plus it's my drinking phone but may try it. I think the store is sucking the life out of mine.
Lumia 920 here, battery life is rougly as long as in build 10136, which was the best build I've had based on battery life. It's still about 10-15% away from WP 8.1 though.
To be honest, my 920 has had heat issues since I bought it back when WP8 was out. The battery has been erratic since back then too. One day it would last the whole day. Then another day only 4 or 5 hours of just being in my pocket. Sometimes it would show 50% still left, and 30 minutes later would shut off with the battery drained.
Out of topic but will Microsoft reintroduce SD installs as many people in some countries like mine have very limited connections. Or at least give the sizes of such important update?
Battery life was poor on my Nokia 1520. Phone was getting quite warm. Generally poor performance. But, after a hard reset, I'm leaving it on the phone now. I had an earlier build on a Nokia 630 and it was too buggy. I would actually recommend it now.
I did upgrade this phone from WP8.1. Before I did a reset, the battery went from 50% down to 30% in 8 hours with the charger plugged in the whole time. This was at night, with no Usage!! After reset last night with the charger unplugged it went from 100% to 94% in 6 hours WITHOUT the charger plugged in. Normally it would be at 98-99% in the morning with no Usage. Before the reset, the little arrow in the signal strength indicator that indicates activity was always on. It's working normally now after the reset. I don't think it was using data though. Windows central is very slow to load, and open an article. "My Cricket" app will not install from the store. A couple other apps that I don't care about, will not load either.
On the first day (yesterday) the phone gets pretty hot. Today seems better though so I'm not sure what gives.
If i play heavy games, the battery drowns faster than WP8.1. I experienced lags on couple games like CSR Racing, Perfect kick and new star soccer. There are glitches during gameplay. WP8.1 didn't have this problem, the games ran smooth but the perfect kick on WP10 is another gaming app. The log in account is working and registers than last time I played it on WP8.1 which was last week. Lumia 1520 here
My battery life has been great so far on my One M8. I easily can get through the day unlike my 1520. That phone can't even get through half of the day without needing to be recharged.
Quick side question
Anyone else having problems with the Windows Central all being too laggy. Clicking on individual news feeds to open them into articles etc takes like a good 5-7 seconds. I have a fresh install of build 10536 and I have tried installing/reinstalling the windows central app a couple of times :/
Yeah I noticed that too. And the telegram and Zello won't get notifications in the background either. Sometimes WhatsApp too
Open Edge browser. Browse the web for 5-10 minutes. Turn the phone around and measure the temperature, it is 108F. Terrible. Easy 20% an hour battery drain if you actually use the phone. I gave up, am running 8.1 again.
Can someone tell me what happens when longpressing the home button on L1020 with this build? For me the home screen shirks down to bottom half!!! L521 does not update at all!
That's one handed mode.
oh Thanks!! I was under impression that mode's for phones with 5+ " display.
It was initially, but people wanted it and they gave it to everyone on all screen sizes.. Posted via the Windows Central App for Android
Daniel, is this build good enough for a daily driver, on an Icon?
I'd say NO due to very poor battery life. Bugs from it being a pre-lease is one thing but battery life is abysmal.
I'm using it on my Icon which is my daily driver and other than the reduced battery lift I haven't had any major issues. Some minor app issues such as with LockMix not being able to set a background picture and some apps not seeming to update their live tiles. But it hasn't been bad enough for me to roll back to 8.1. I did do a hard reset after updating (from 8.1) to this latest Win 10 build.
I think Daniel Rubino had a typo. 50% + 38% + 13% = 101%????? Just pointing that out. It should be 12%
My 640 is doing great! Took it off the charger at 6am and 10:10am I looked and it was at 90%. Small usage(checking WC, texting), and changed brightness from auto to low.
Go to your battery settings and turn off background processes for apps that don't really need it. Also, reduce the amount of data that is sent to MS (i forgot which setting that was)
Mine shuts down at 50% sometimes even at 80% notifying me that battery life is. Critically low. When i play games it sucks 100% to zero in an hour
My battery in my 1520 is better in this build than the previous build. Now my device is hotter than before. Question: Is just with my device that Windows Central app is much much more slower than before? I will uninstall and install again.
No I noticed the same thing. Think imma uninstall and install again
yes, the WC app is even slower ... who knew it was possible xD
Windows Central was running pretty slow for me on this build and the prior one. I did a hard reset last night and didn't restore from a backup. Now Windows Central is running at its normal speed for me.
My L920 is doing much better than previous build on standby time. It last almost 2 days on standby (which is much more than what I expect!), I received a lot of notifications during these two days though!
It's been outright nasty on L925 It's not giving me a good feeling from not being able to have my email on a dark BG to a number of things.I like the square mosaic of the people tile in 8.1 the circle are rather ugly. plus I notice that apps are taking. longer to load
the very first day I updated my 1520 battery life was so awful that charging the phone will only make it "not to drain" beyond that point and the phone was really hot, I turned it OFF/ON and didn't solve anything. The following day, after an all night charge, seems to be back to normal.
Started off not too well after updating directly from the previous build. Did a hard reset and now it's pretty much back to what I was getting on 8.1
Having a L1520, what annoys me is how long it takes to get a complete charge....at least 4 hours...insane! :/
L720 i feel battery draining faster than previous build. Hahaha lets see after couple days later
My l820 lasts all day with normal usage.
My 1520 also draining the battery fast and some time hangs, exactly the same problems that was with previous build 10512 like slow loading the windows when power on, sometimes takes about 2min in switch off, still showing windows loading when windows starts and apps taking too much time to start also apps are crashing continuously.
Running a 1520 and I feel as though it eating more battery but with all the fixes and features maybe I'm just playing with it more.
My battery is draining like shit! And the phone is super hot... Not like Build 10512... L930 here... Still love it though...
Hey Gabe, and/or anyone, a bit off topic, but do you think it's worth a hard reset like the last build, all things considered?
Mine runs much better after a hard reset. Nokia 1520.
8.1 was better, but I don't feel it's 30%. Maybe 15% for me on the HTC one m8.
A bit faster than I remember but my usage varies enough that I can't say it it's definitely the build and not my routine. 1520.
Im glad you brought this up battery life is great. I just wish that w10 mobile had time since last charge.
Bad. Lumia ICON. Moderate use for two hours and down to 25%.
Battery life horrible on icon. Only about 7 hours with light use.
Looking at my battery usage, microsoft edge so far has used over 50% of my battery usage, with background usage on that app making up 70% of its usage. What gives? Why is it doing that much in the background? I just disabled background for it, so hopefully that will help...
The battery on my Lumia 1520 is good. I don't see the battery losing power at all.
Give it another day.
After doing a complete fresh install with no restore and then reinstalling all my apps again, it runs so much smoother then when i first tried with the same build 2 days ago. Today ive been using my phone just as much as i usually do, if not more and my discharge speed is half than what it usually was on wp 8.1 update 1 on my lumia 930.
Seems better than last preview.
Battery life is phenomenally improved. Love the build.
As about as good as Groove music is working.
Far better then 8.1 I'm getting about 2days on a charge as apposed to about 1.5 days on a Lumia 1520 with somewhat constant use
I don't know about lasting longer, but it still is very warm to the touch when it's charging wirelessly.
Just buy professional phone with proper wired charger not some crappy Lumia designed by nokia, the worst phone manufacturer ever.
Fanboy
This is the first professional WP10 build. Previous were available only for crapy lumias.
My Samsung Ativ S old battery last the same as it used to with obsolete WP8.1.
ios gained at least an hour more battery life on most devices. Why are we going backwards MS :(
I read that story too and it said AS MUCH AS one hour and that is in their labs. You might only get 60 seconds more. Good but lets not give too much credit to claims made by Apple. The blog left out, your mileage may vary.
Please can anyone confirm if the vpn feature is working in this build. Mine shows connected but doesn't connect thru the vpn
My update got all messed up, I got the 10514 and the 10536-1000. I checked for more updates then I got a 10536-1004...
Anyone has issue with sent and received file via bluetooth?
WC app is lagging in build 10536.
Previously this problem was not their in any past build.
Yosh, me too
On my HTC One M8, my battery is stellar, Always has been even at 8.1 I think its better with this latest build. My 1520 on the other hand, my phone coming off the charger with this latest build, I take ONE picture, ONE, and the battery drops to 3 percent and shuts down. INSTANTLY. Rolling it back to 8.1. Its all good there.
I think my NL830 battery life is Somewhat improved in this build.
Still worse than 8.1.
But a great improvement since the very first build in W10.
I feel like my Lumia 822 battery life got worse with 8.1. I hope Microsoft can improve the battery life over 8.1 with 10.
My laptop's battery is also affected by Windows 10... Its efficiency is reduced to 42%. When will MS fix this?
1 yr and 7 month old Lumia icon. Did a hard reset. Phone at 100% battery at 11:00 pm and checked it after night of no use at 8 am and it was down to 85%. Normally under 8.1 It would be at about 93% under same use.
I'm burning through battery in about 13-14 hours where it used to carry me for 16-18. #Lumia830
My 1020 battery is so bad I'm buying a replacement one tomorrow and gonna attempt to install myself
The battery life for me is bad. It's almost dead after 8 hours of average use not too much being done. I used to get a day and a half of use ob my icon on 8.1.
On top of that the flashlight button on the toggles doesn't work.
When my 1520 battery doesn't last the whole day, there's something wrong. Before installing W10M on it, I would end the day with about 40% battery life. Now I can't make it to 7pm.
Bad
I'd like to comment but I can't download the update keeps getting stuck in installation Posted via the Windows Central App for Android
Heats up and drains like crazy. I hope they fix this soon.
I have a Lumia 1020, when I buy it the battery last like 24 o 25 hours with casual use, with the last actualization in WP 8.1 I can barely get 10 hours with the same conditions... I don't wanna know how bad it will be with this one. I'll wait for a RTM version next month and I hope it better be stable and battery last longer.
Had to turn off Cortana on previous builds, she really drains the battery. I think it's mostly her geofencing that drains it tho. On WP8 you had the option to turn off geo fencing and keep cortona. It's disappointing that in order to do this on 10 you have to disable her completely
The battery life is quite good, unless I use Caledos Runner. It then empties at an alarming rate.
My 1520 drains since first build quite fast... With 8.1 some times it lasted almost a day... No with this one...
No difference with this one
On Lumia 520 the battery life is not as good as on WP 8.1 battery drains 30% faster, but at least it last more than on previous builds. Which my battery went from 100% - 10% in less than 4 hrs ,this build it las like 8 hrs I will try to wipe it and then I roll back to 8.1 depending on the performance after wiping everything
My Icon is doing terrible battery wise...I've had to charge it three times today with minimal use...will probably do a hard reset after work and see if it helps
Biggest usage is for the display on 640xl just lost 2% typing this comment.
Just turn your brightness down until RTM...
mines draining when screen is off! down to 41% in 7.5 hours with minimal use
It helps to turn off background running apps and adjust the screen brightness. You can get back about 30%.
On my 1520 after 8 hrs my battery was dead hardy used my phone,before the update I could get almost 2 days
My lumia 830's battery life with this build lasts me from 7:00am till around 9:00pm with normal usage. I'm pretty satisfied :) better than the last build.
All my windows 10 devices are draining the Battery fast. Surface PRO3 and Icon
Agreed....
With ask the variation apparent by users on this page I wonder how much is due to people not doing clean installs?
Terrible battery life... Worst than ever
Anyone having issues charging? I've been plugged in for about 3 hours and I'm only at 70%.
From using these previews for long time I actually forgot my battery backup of my lumia 1020
Wow, voting in this poll in edge mobile was so frustrating! The radio buttons didn't register taps until the whole page, including comments, had loaded fully.
And my battery power seemed to get worse with 10536. It had been ok before.
My Lumia 730 battery drains too fast. And start screen flickering when I long press the back button.
Keyboard word flow is not working on Edge address bar.
Very significant battery drain on my Lumia 930 with build 10536
Using the Lumia 1520 - battery life wasn't affected, though I'm quite annoyed that the Photos app wasn't accessible through apps like Whatsapp.
Dear God, I know that my Lumia 820 has only 1650 mAh, but it could handle well in the past. Enlighten the minds of Microsoft developers to create another super build for next week. Amen! (Translated from Portuguese by Translator 10 Beta).
On my L730 it's terrible, fully charged on 5 PM, and when 1 AM, my battery is on 40% and then going to bed, when i wake up on 7 AM, it's already dead. Checking usage on Battery Saver, and i got "Start" app that consume about 60% of my battery, WTF. Why start screen consume so many power? Really really worse than previous build and 8.1. On previous build, my battery can go about 1 day, on 8.1 a day and half.
My Lumia 1520 still 56% after 1 day 15 hours...it's really great battery life!
But, please fix WindowsCentral app for Windows 10 Mobile.. It's so long to move page to pages -_-
Mine sitting at 0% from 48 hrs despite 7 soft resets. It stays that way and after 4hrs says updates are available and starts again. Battery drains at 15% an hr even if the mobile is in aorplane mode. Any suggestions ? :( Using Lumia 1520. India
Hard reset
Everything is much better except the battery life, it's worse and very easy to heat up my phone. I'm on Lumia 930.
640xl..used to have good battery life that lasts for two days...now less than 10 hours....have to charge it fairly quick even when i am not frequently using the phone that much...still battery is draining like this quick!!!!!!!!
M getting 10% more battery than wp 8.1 denim and 30% more battery than build 10166.
Sounds unlikely.
Battery definitely seems faster... To drain... 930... And hot
I was wondering, are they working on battery efficiency?! Obviously not. The OS may be the fastest ever, but i wouldn't be so happy if battery drains fast
My 920's Battery is draining 20% per hour. I recharged the phone 3 Times already today after upgrade. I also tried to soft reset but no luck.. Previous build was better.. May be 920 firmware drives got wrong in this build.
For everyone complaining about battery life in 2+ year old devices, it might just be the battery. I was having terrible battery life, Lucky if 3 or 4 hours. Was about to give up and go back to 8.1 where battery wasn't good either. I put in a new battery and the 1520 now rocks. I have to charge it once per because of how I much I use it, but way better than having to carrier a charging brick with me.
Previous build was doing very well compared to this build
I've noticed a pretty big improvement on my 920. Battery life is much better and my phone doesn't near as hot.
I am using a Lumia 1320 and the new build is giving me a full 1.5 days of battery - I am not using skype application - so I am pretty happy with this build.
Made a fresh install to my 930. I like the build, it's enough good to use but the battery life is bad.... During the night (7 hours) from 90% to 5%. That's not good. But as this is my everyday use phone I think I'll stay in this. Don't want to do all installations again. BTW, I made full backup,from 8.1 succesfully, but that was not available when tried to restore. There was only 2 months older on the list...
Does anyone else also noticed excessive battery life draining from groove music? It used just as much battery as my eBook reader even thought I've used it for one hour less...
My 2 year old 1320 has no problem with this build. Still the same. I think your phones need to redownload and reinstall all apps during the night. Try to use it a few days more before giving the judgement.
On my 735 it is okay. Not as good as it is running 8.1, but no major difference. Issue is the battery heating, noticeable during Qi charging. It stopped charging for a while due to it, which never happened in the previous build.
Not so good but better than last last build.. Also I cannot create folders in the start screen, anyone else facing this problem?
I couldn't update it keep says your I have nothing available... Dunno why
Battery drains comparatively quickly on Windows 10 compared to Windows 8.1. Apart from the battery draining the phone tends to be in heat up state most of the time(inspite of not running a single app).
I think they should survey based on the model of phone the user is using since mostly a huge part of windows phone are budget phones
The drainage....seems faster
I want to see the battery life is terrible, but I also want to say that I can click the poll. From mobile.
Much better, hold on probably another 5ish hours over the day with the same use and does not get as hot. Did do a fresh install.
I have been draining a battery from 100 down to 20ish in 6 hours doing nothing just idling
Same here and for me, it was the Podcasts app which was doing it...turned off background options for it...but still draining...
It was pretty bad untill I did a full reset. Both my M8 and NL830 seem to do fine now, better then previous build!
Pretty much the same for me..
Its ok but no way stellar. Better than b4 perhaps but definately worse than on WP 8.1 on my L1520
Running build 536 1004 on my Lumia 535 and battery life is pretty much on parr with what it was on 8.1 in previous builds battery life was terrible but right now I'd say I'm getting around 10% less daily to a full charge compared to 8.1 and I use my device as my daily driver and give it quite heavy usage.
Battery better for me on the 930 with this build, I had the disappearing message app so went back to 8.1 then clean installed the recent build. A few apps are very laggy and the others are fine but the home screen on my 930 is not smooth!
Pretty good
Horrible battery life in this build (again!) Lumia 930. And horrible round contact pictures everywhere with silly animation. Not a build Microsoft can be especially proud of, after the long time it took them to come up with it.
Battery life is terrible. After install build 10536 phone was warm all the time and battery just melted. After hard reset it was little better, phone wasn't that worm like before, but w10 was gone straight to hell. Message app was dead, and lots of weird stuff start to going on. Going back to 8.1 as soon as possible. Posted via the Windows Central App for Android
I tried 10 time to install build 10536 but its not installing :'(
Poor, phone now always running hot when using my 930
I have had to go back to windows 8.1 on my nokia 830 as the battery lasted no time at all. It was just so bad I could not stand it. Im now back on beautiful fast windows 8.1 and I think im staying here until somone tells me windows 10 is just perfect. Thanks
Right move...i just did the same too.
lost 55% overnight whilst in flight mode! and charged at work (took ages). it finished charging at 11am. was at 30% by 6pm. the only thing i really did with it yesterday was listen to music over bluethooth for 1 hour
Battery like about 30% worse, really unstable. WiFi broken since release, have to keep soft resetting, apps take aaagggeeesss to load -taking over 2 mins to load windows central app. Worst build by far for me :/
Paid games reverting back to trial mode
You need to do a hard reset
Did one before upgrading to 10
Its not good battery , on my lumia 535 get drained in 5h .
It's been worse compared to the previous build, but I didn't hard reset.. L930 here
battery saver shows me no information about apps? so i cant even see whats going on! this apps is still in 8.1 language too!
I need Help. I can't unlock my phone eventhough I am putting the correct PIN. I have soft reseted it for nth times, still stuck in the lockscreen. Any workaround on this?
Have updated my Lumia 535 but have yet to give it a test, maybe will do so and see. Although comments don't seem positive.
Battery on my L1520 was horrible with the last build and i was forced to buy a power bank, this build is perfect and i sometimes end up using the power bank once a day. I first hard reset my phone with the previous build without restoring any backup and then upgraded to the new build. I ahve also noticed that my phone has been heating up less compared to the last build.
Hm... the battery of my Lumia 930 is running *better* than on previous builds... Still gets hotter than usual, but the battery doesn't drain that quickly anymore. It finally lasts a day (or a little more). Of course it's nowhere near the WP 8.1 battery life.
Why should battery % charge be hidden ??????????????????????????????????????????? Glance should be able to show battery power>
The same as the previous build , nothing changed , L820
I've been seeing the battery drain with this latest update.. Has never happened before with previous builds. :P
Sounds like i ain't gonna enter windows 10 to soon. My 1020's battery is already a pile of crapp. Don't need it even worse. And want to tell you i was really thinking to jump for 640 LTE, cause how 300 times better, that one's battery is....
Running on Lumia 640XL. No problems here. Haven't charged it for around 36 hours and still have 29% (15 hours use) left. I miss the "time since last charge" feature. Always liked checking that.
Slightly worse than on build 10512 (which was almost 1:1 with WP8.1) And the weird part is that I just can't see visible performance improvements compared to build 10512. Maybe slightly better, but nothing to justify the worse battery performance.. Well, at least we know that with the final release our devices will receive custom tailored firmware and will run/ hold charge better than now! On a Lumia 730.
My 1520 drains the better about 10% quicker. Windows central app now loads a lot slower!
It even drains the battery
I'm user of Nokia Lumia 620 current OS win 10 phone build 10512 mine also battery drain so fast I've charge my phone 3 time in day :'(
One thing also noticing win 10 phone also charging phone very fast my phone charge 0% to 23% in just 12 min .
Sometimes I can fry a egg on my Icon
My Lumia 830 has exactly half the battery life on these Windows 10 previews than it does on Windows 8.1!
See my post below. I have an 830 also
Horrible on my 1020. Hardly even lasted a day, and wouldn't efficiently charge at all
Lumia 1520: Initially battery life was horrible, along with start screen loading problem, long restoral of backed up programs, sms.
About 24-36 hrs of mess.
Now system seems stable, battery usage normal 3-7.5% /hr. Normal usage.
My 920 is doing as well if not a little better than 8.1. I'm using it as my daily driver and I'm not having any battery or overheating issues. This build seems solid, just a little lag in a few places. All in all an improvement over the last build.
The 635 has longer standby power on the new update. The overheating is still an issue. Sort of expected on a OS that actually uses all CPU/GPU cores for once. I know that MS had workshops for mobile app makers about this issue in March and beyond. Software is finally catching up to hardware allowing for a lot more performance on the same silicon.
Im lucky, I still can't download d latest build xD
It seems like my 635 battery life has improved slightly over the last build.
Lumia 830. And it kills my battery life.
I don't know if u are having this problem, but mine is wasting tons of batterey, but i figured out why. First of all, it defaults to allow all apps to run in the background . I needed to go to battery settings and turn off alot of background apps . Secondly glance is on all the time unless it has complete darkness. I couldn't find an option to turn glance off. So I just flip my phone face down on my desk. Hope this helps!
Battery drains quickly than the previous build
I rolled back to win 8.1 what a relief.....well I think we will still have a month to go at least to see the whole baked win 10 build..the very real deal....better to run my phone on a reliable build though the look isn't as charming as win 10 preview....my phone freezes when I was out so I gotta roll it back for sure...
I may have to just to make it through the MORNING on my Lumia ICON. I really like Groove, Outlook and the office apps...hare to leave them behind...I like a lot about Windows 10 mobile and 8.1 seems antiquated to me now
I get about 5-7 hours on my L920. Luckily it's not my daily driver. I'd flip if that was the case. It seems to overheat as well.
Oh yeah... I've definitely had Windows 10 preview builds not manage processing well =/
I think battery life really depends on what phone you are using...
Its strong at the start, real weak in the middle and falls apart in the end... It charges super quick though! I think it's just not managing processing and memory well enough, adjusting to the changes. =[
It's absolute terrible. Last night it dropped from 76% to 18 during my night sleep. Much worse than last build.
Mine woke me up at 1:30 AM because battery was at 10%...it was at 75% at 10PM... :(
well just roll back to win 8.1 people...don't complaint anymore....very smooth on windows central now...when i was in the win 10 new build...it wasn't smooth but a bit freeze too...now all smooth and fast...
Battery better than 512 on my L925, but still nowhere close to wp8.1. I must say though, this build is quite awesome. I hope a firmware update for devices , once w10m is released, will help the battery and other issues. Also, is there anyone here with a lag when scrolling thru pages and/or apps? Pls let me know
yes i experienced it when i was in win 10 new build
It has slightly decreased on my Lumia 640, but not terribly.
I think the worse battery may be related to wp10 acting like android and Iphone by not closing the apps. If you hold the back button you will probably notice a few open apps.
Yesterday it went through battery life on my 1520 quickly with the new build today still at 80% at the end of today with the previous Win 10 build been getting 2-3 days battery life
Battery life is much worse! Unplugged at 6:45am it is now 10:33am and percent is at 80. One five minute phone call and a few twitter notifications on a L1520. I used to go 10 plus hours and still have 65 to 75% left by 5:00pm that included browsing, conversing and videos. It is nothing like Win8 not Win8.1 because I witness drain in it also running a different L1520 on it. Fingers crossed for the return of Win8 battery life of almost three days on a single charge.
It's super terrible. Also the build is not as smooth and fast as I initially thought. Lots of hangups, hangs, loadings and restarts required. Lumia 920.
Awful, the main reason seems to be Start which is draining 25% of the total usage. Way more than previous builds and 8.1
Those who complaining should go to settings and turn off unnecessary things
I'm getting about 45% difference. Running a HTC h8 one... I had to put my zero lemon case, back on to make it though the day.
Yea, still no where near as good as 8.1 was. I was waiting for my car in the shop today, I had to wait a little over 2 hours (UGH !!) so in that time, I used my phone through most of it, and yep by hour 2 the battery was dead (less than 10%). 8.1 would of lasted longer, I was not playing games, or streaming videos, I was reading, news, twitter, facebook, etc... So in my estimate, about 30-40% less than 8.1 was... this is only day 2, I know it levels out a little after 3-4 days with a build so it might be too ealry to say... With this being said, so far, it's better than 10512 was... not by a TON but, a little better..
Im on 8% right now and havent charged it for over 24hours at least, I think its getting closer to 30-34 hours but I wouldnt know because the battery settings doesnt show time since last charge any more... :P I guess its about the same as 8.1 for me, maybe a tiny bit worse, not really noticible tho. but its really to early to tell Lumia 1520
this build runs great on 920, no issue. but battery is kind of whimsical, very hard to predict, turned off all background still problem persists. this is the only reason i switched back to wp 8.1. its not just draining fast, it also takes a long while to charge and heats the battery very much. my phone is in normal state after i switch back to 8.1. so battery has no issue, its the OS which has the problem. hope it would be improved in the next build.
After the update my 1520 Lumia shows "Critical Battery" and shuts down, I switch it on again my battery guage shows full, then after a few seconds it shows "Critical Battery" and Shuts Down. Switiching on again, there i see my battery guage on battery save mode with less power. I dont know if I have battery problems or is this because of the upgrade.. Thanks
Mine is okay, but considering my One M8 is nearly two years old, I don't expect it to get the greatest battery. It was awesome when I got it, but after updates were installed, it got worse, and worse with normal use. So I am not sure if it's updates or the battery it self that just isn't making my device last very long. Used to be able to go through a day and never even hit 80%
I have a Lumia 1320. I went from 2 days on 8.1 to just 1 day on 10! Recently this got worse after an update (I am on the alpha channel). From 100% at 9 AM, it would go to 70% in a few hours of low use. Sleep at 30% and battery would die overnight. And I keep bluetooth/Location off! At that point I considered going back to 8.1. Then suddenly a new update arrived. This was surprising, as earlier update happened just about a week ago. I had never seen two updates in such a short span. With this, things improved. It basically undid the damage done by the previous update. That convinved me that it is not due to my 20 months old ageing battery. It is the software. So I thought about what W10 does that 8.1 didn't that can potentially affect battery life? My first guess was transparent tiles. Transparency taxes the GPU. So I set background to 'None'. I also turned off Bing lock screen. Effect? Back to 8.1 days! I unplugged some 26 hours ago, and still going strong at 48%. Overnight battery consumption is down to where it belongs: 3-4%.
I just bought an unlocked 950XL and its a battery pig. I had the lumia 1520 and Win 8.1 was brilliant. I put 10 on it and the batery was aweful. This new 950XL with a clean ROM from Microsoft is no better. I get few hours out of it if I'm lucky. If I put it into battry saver mode it's better but it's a nuissance. The OS an interface are great but I'm honestly thinking about returning it.

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