09-01-2014 05:25 AM
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  1. tgr42's Avatar
    I did do a soft reset yesterday morning after I charged to 100% and the phone stayed at 100% until around 10:45 (phone taken off charge at 8am) and it stayed around 1-3% idle but whenever I do anything on it, it really drains it. Is this the same for everybody? I thought WP8 was efficient on battery and only using a low speed (compared to other phones) dual-core processor meant it used less battery?!

    The battery is getting better the more charges it gets but I am rather worried that the phone cannot do the tasks its meant to do without running the battery down.

    Edit - forgot to mention that I ran with flight mode overnight, it used 10%.
    Battery consumption and efficiency is based on many factors. The 1020's CPU is not really clocked much lower than many other phones, and just because it's dual core doesn't mean it's going to use less power than a quad core CPU. Also, don't underestimate the display. The 1020's large AMOLED display is probably dwarfing the CPU in power consumption during many usage scenarios, even if you set the brightness to the minimum.

    There seems to be a common claim among WP fans that WP does more with less. When I had my Focus S (WP7) I would've agreed with that, but it doesn't seem to be the case with the 1020. I feel like the Nexus 4 stands up to heavy usage a lot better than the 1020, but it's just an impression and I haven't done any serious testing.
    10-02-2013 08:23 AM
  2. marratj's Avatar
    Especially the display seems to use a lot energy, right. When I'm reading late in bed, where Auto Brightness is very low I can see it drain much less power than during the day, where the screen is always pretty bright.
    10-02-2013 09:46 AM
  3. chocka's Avatar
    Battery consumption and efficiency is based on many factors. The 1020's CPU is not really clocked much lower than many other phones, and just because it's dual core doesn't mean it's going to use less power than a quad core CPU. Also, don't underestimate the display. The 1020's large AMOLED display is probably dwarfing the CPU in power consumption during many usage scenarios, even if you set the brightness to the minimum.

    There seems to be a common claim among WP fans that WP does more with less. When I had my Focus S (WP7) I would've agreed with that, but it doesn't seem to be the case with the 1020. I feel like the Nexus 4 stands up to heavy usage a lot better than the 1020, but it's just an impression and I haven't done any serious testing.
    WP8 is smooth compared to android. But I think the explorer has issues with certain web pages. It might be particular modules(like javascript) that is not handled well by the browser and I can feel the phone heating up when browsing certain websites. One example is this site. The IE keeps loading this website forever. I hope IE11 cleans up all these issues.
    10-02-2013 03:07 PM
  4. Graphic_Delusions's Avatar
    I'm like on my 4th or 5th charge and at 100% it says I have 11 hours of batter left. If I turn on battery saver mode on all the time it adds an extra hour (so that's 12 hours).
    Is this normal?

    On the GSM Arena review they state:
    gsmarena_002.jpg

    I'm getting half of that. Is this the same for you?
    I haven't done a soft reset yet, will that improve battery life?

    I only have Whatsapp running in the back ground, I have the screen brightness set to low, Xbox turned off, double tap off, glance set to peek. Wi-Fi / internet switched on when needed, network set to 3G etc...

    Right now the phone has has been off charge for 1hr 30mins and it's still at 100% charge (11hours battery time left).
    It's only when I switch on the internet and use apps like Facebook & Twitter that the batter drains quickly.
    10-03-2013 03:25 AM
  5. tgr42's Avatar
    First of all, the phone's estimate of remaining battery time is just an estimate. It will be wildly inaccurate at times. You should judge the battery by its actual performance - how long are you able to go before having to recharge, and what did you do with the phone during that time?

    Second, when you take the phone off the charger, it will often stay stuck at 100% for a long time - I've seen it do it for up to 4 hours or more. This doesn't mean your phone is consuming zero battery during that time. It just means the phone is not reporting the battery level correctly during that time. You can't get a valid sense of battery consumption while the reported level is stuck at one value.

    Regarding wi-fi: unless you're going to be away from a good wi-fi signal for a while, leave wi-fi enabled. It will help your battery life significantly. It takes much less energy to communicate via wi-fi than via cellular. Setting the phone to stay connected to wi-fi all the time is very helpful to battery life. The only better state to be in is airplane mode with all communication with the outside world cut off.
    10-03-2013 07:46 AM
  6. Graphic_Delusions's Avatar
    Ok, so I've come home from work today and I only have 2 hours of battery left.

    I have used the Battery Sense app to monitor today's progress.

    lumia-1020-battery-test.jpg

    Can someone have a look at this and tell me if this is normal? I have only used Facebook, Twitter, and Whatsapp on & off throughout the day using mobile internet.
    10-03-2013 12:41 PM
  7. tgr42's Avatar
    That looks kind of harsh. But it could be normal if "on & off throughout the day" for you adds up to a substantial amount of time. You should try to use wi-fi instead as much as possible, and make sure none of the apps you're running are draining the battery unnecessarily. Other folks around here have said that Whatsapp is a battery hog, but I've never used it. In general, you may need to completely exit apps (usually by repeatedly slamming the back button until they finally die), disallow background tasks as much as possible, and set various settings conservatively in order to get better battery life.

    The attached graph shows my current test run which has the aim of studying the impact of "double tap to wake". After just over 2 days with this setting disabled the battery is at 52%. I'm guessing I'll end up at a comfortable 3 to 3.5 days before needing to recharge, as opposed to my usual 2 to 2.5 days, but I won't know for sure until tomorrow. I would also describe my usage as "on & off throughout the day" but much more off than on. Mostly just briefly checking email maybe 10-20 times a day, a few minutes of mobile web browsing a day, and 2 or 3 pictures taken+shared.
    Attached Thumbnails battery4.png  
    10-03-2013 01:29 PM
  8. Graphic_Delusions's Avatar
    That looks kind of harsh. But it could be normal if "on & off throughout the day" for you adds up to a substantial amount of time. You should try to use wi-fi instead as much as possible, and make sure none of the apps you're running are draining the battery unnecessarily. Other folks around here have said that Whatsapp is a battery hog, but I've never used it. In general, you may need to completely exit apps (usually by repeatedly slamming the back button until they finally die), disallow background tasks as much as possible, and set various settings conservatively in order to get better battery life.

    The attached graph shows my current test run which has the aim of studying the impact of "double tap to wake". After just over 2 days with this setting disabled the battery is at 52%. I'm guessing I'll end up at a comfortable 3 to 3.5 days before needing to recharge, as opposed to my usual 2 to 2.5 days, but I won't know for sure until tomorrow. I would also describe my usage as "on & off throughout the day" but much more off than on. Mostly just briefly checking email maybe 10-20 times a day, a few minutes of mobile web browsing a day, and 2 or 3 pictures taken+shared.
    Thanks for your reply. Comparing both your graph to mine would say that I have a defective battery.

    Unfortunately there is no Wi-Fi at my work place so I can only use my mobile internet connection. I'm going to monitor the battery tomorrow with whatsapp completely turned off and see if that makes a difference.

    Also, another question, I have linked my facebook & twitter details to the 'People' app - could that be another culprit?
    10-03-2013 05:00 PM
  9. tgr42's Avatar
    It sounds way too early to conclude that you have a defective battery. My latest results are probably not too far off from the best case scenario for actually using the phone in a light but realistic way (no airplane mode or other extreme tactics). You should definitely see how long your battery can last without having any apps running that might be sucking power. It might also be good to try leaving it in airplane mode overnight if you can and see how the battery consumption changes. With all communication cut off the phone should consume very little battery as long as it's working properly and no app is doing something very stupid like constantly retrying communications.

    As for linking your Facebook and Twitter accounts to the People hub, I'd say that's probably safe. I've always had Facebook linked with no obvious problems, but I haven't tried linking Twitter. It's definitely a good idea to confirm it on your phone though.
    10-03-2013 05:33 PM
  10. Graphic_Delusions's Avatar
    It sounds way too early to conclude that you have a defective battery. My latest results are probably not too far off from the best case scenario for actually using the phone in a light but realistic way (no airplane mode or other extreme tactics). You should definitely see how long your battery can last without having any apps running that might be sucking power. It might also be good to try leaving it in airplane mode overnight if you can and see how the battery consumption changes. With all communication cut off the phone should consume very little battery as long as it's working properly and no app is doing something very stupid like constantly retrying communications.

    As for linking your Facebook and Twitter accounts to the People hub, I'd say that's probably safe. I've always had Facebook linked with no obvious problems, but I haven't tried linking Twitter. It's definitely a good idea to confirm it on your phone though.
    So far today I have seen an improvement.

    I have switched off everything in the background including mobile network connection. I have removed the Facebook & Twitter feed off my 'People' hub and blocked Whatsapp from connecting.

    It's been over an hour off charge and it says 100% battery charge - 4 days & 13 hours left. I have never even got above 11 hours of charge remaining before so it's looking good!

    *EDIT* - It's been just over 2 hours 20 mins and the charge has now dropped to 11 hours 48 minutes. All I've done is txt people a few times and open the Battery Sense app.
    Last edited by Graphic_Delusions; 10-04-2013 at 05:15 AM.
    10-04-2013 03:50 AM
  11. tgr42's Avatar
    Again, you can't trust the estimate, especially while the level of charge is still at or near 100%. I've had it tell me 22 days at 100% before. Actual battery life ended up being about 2.5 to 3 days. If you get the battery down to at least 75% or so and have maintained a fairly stable usage pattern, and expect to continue that pattern throughout the remainder of the charge, then you can start believing the estimate more. Even then it may take several charge cycles before it starts getting reasonably accurate.

    What you should be looking for to measure battery performance is the actual time lasted on battery between charges, and what you did with the phone during that time.
    10-04-2013 07:17 AM
  12. mrmprince's Avatar
    Does anyone know whether there's a list of "problem" apps that would drain battery? I've been reading a lot of articles and seems like some system apps cause issues, as well as apps that still run in the background even tho they're closed (like IE, or some games)...but it's so hard to figure out which ones cause battery drain...

    It'd be nice if there's a list of all the problem apps so ppl know what not to download...
    Last edited by mrmprince; 10-08-2013 at 01:43 PM.
    10-07-2013 04:29 PM
  13. Graphic_Delusions's Avatar
    I received my replacement 1020 today and the battery is sooooooo much better than the last one. I definitely think that one was defective.

    I have everything turned on without any compromises, heavily using apps, and still getting decent battery life. Even with 50% battery left it says I have over a day's worth of charge left.

    Very happy now.
    10-10-2013 05:07 PM
  14. mrmprince's Avatar
    What is your discharge rate averaging at per hour? I'm seriously contemplating swamping mine since it seems to always float around the 10%/hr rate...whereas ppl are getting 5% or even like tgr42, getting like 1-2%/hr...
    10-11-2013 02:52 PM
  15. WavingReds's Avatar
    Mine discharges from 0-1% per hour without use
    10-11-2013 02:57 PM
  16. Pollis559's Avatar
    What a difference a phone (new) makes.

    Decided to swap my phone (new batch delivered to Vodafone) and it has worked.

    Before swap >9% drain idle & 10 hrs battery life whilst doing nothing.

    After update <2% drain idle; over-night it only dropped 12% with wifi, data, email & social media updates.

    The only other thing I did differently with this phone was to charge it first when I brought it home instead of using it until it went dead and then charging it. I think I just had a lemon. Happy snapping.
    10-13-2013 03:44 AM
  17. jussisolja's Avatar
    I've been experiencing the drain as well (barely getting through the day with my 1020 + serious overheating when simply browsing or doing normal smartphone stuff like tweeting etc).

    This however only happens when I'm using the phone on a mobile data. When I switch mobile data off and just use wifi (same 3 email accounts syncing + skype etc) the battery life triples! When I have the phone idle with syncing and on wifi the drain is 0.3%/hour! Woth mobile data switched on the drain is closer to 10 when idle!

    So in my case it seems the mobile data connection is to blame. Don't know what to do with other than replace my device but hope this helps someone out there :) It's worth a try anyway.
    10-15-2013 02:23 AM
  18. Daniel Pa's Avatar
    Two days ago, when I bought Nokia Lumia 1020 and charged it till maximum 100%, the app Battery was showing 1 day and 13 hours of remaining battery. But yesterday when I plugged for a recharge it charged very quickly and whole phone became very hot. After that the battery discharged for more than 50% when I was sleeping and not using the phone (look at the photo that I attached).

    I disabled all apps from working while backgrounded. But still now the app Battery shows only 13 hours remaining when I recharge my Lumia's battery till maximum.

    For example, today when I was listening to music on Nokia MixRadio app my phone discharged for 30% during one hour...

    I'm really dissatisfied with phone's battery performance. Maybe this is some kind of hardware malfunction? Because it's insane if battery discharges for 50% during the night...

    Can you help me to solve this problem?
    wp_ss_20131123_0002.jpg

    I applied almost all suggestions that I've found on this forum today. Will check if something changes.
    11-23-2013 03:30 PM
  19. Siddharth Ramakrishnan's Avatar
    Two days ago, when I bought Nokia Lumia 1020 and charged it till maximum 100%, the app Battery was showing 1 day and 13 hours of remaining battery. But yesterday when I plugged for a recharge it charged very quickly and whole phone became very hot. After that the battery discharged for more than 50% when I was sleeping and not using the phone (look at the photo that I attached).

    I disabled all apps from working while backgrounded. But still now the app Battery shows only 13 hours remaining when I recharge my Lumia's battery till maximum.

    For example, today when I was listening to music on Nokia MixRadio app my phone discharged for 30% during one hour...

    I'm really dissatisfied with phone's battery performance. Maybe this is some kind of hardware malfunction? Because it's insane if battery discharges for 50% during the night...

    Can you help me to solve this problem?
    Click image for larger version. 

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    I applied almost all suggestions that I've found on this forum today. Will check if something changes.



    kill the phone battery and charge it full and do the same for next four days. And your battery will improve in next 20 days as mine did.

    Now I am able to watch videos for 10 hours. Last teated yesterday .

    Battery from 28 to 0 for whole troy film





    Sent from my RM-875_im_india_230 using Tapatalk
    11-24-2013 12:51 PM
  20. Lisa Wolter's Avatar
    Hi!
    I think that it's actually the "indicator" in the 1020 that's the problem.
    I have the same problem.
    But, when I turn off the phone and turn it on again, I get 100% battery left.
    Weird!

    Lisa
    12-02-2013 02:10 AM
  21. Mei Khamsaveng's Avatar
    I have the same problem
    01-04-2014 07:01 PM
  22. Idola_The's Avatar
    Mine just had a massive drop in battery life so far.My Titan was doing better in battery life around the same time period.
    01-20-2014 11:11 AM
  23. TruPlaya187's Avatar
    kill the phone battery and charge it full and do the same for next four days. And your battery will improve in next 20 days as mine did.

    Now I am able to watch videos for 10 hours. Last teated yesterday .

    Battery from 28 to 0 for whole troy film





    Sent from my RM-875_im_india_230 using Tapatalk
    I will try that also. One question, why after 20 days?

    and thanks for the tip!!!
    01-20-2014 11:54 AM
  24. fieldbaker's Avatar
    Here is my experience with the 1020 and the battery: http://forums.windowscentral.com/nok...arge-rate.html

    I ended up returning mine because the battery problems were terrible. I won another 1020 from a Nokia competition and this one is like a different phone. If you are experiencing horrible battery life, return it. My first 1020 barely lasted a day. My new one lasted 3 days on my last charge, with light/average use.

    Though.. When i use WhatsApp, Store or some other apps.. The draining begins. So i try to avoid WhatsApp and several other apps.

    My new 1020 idles around 1,5%/hour with live-tiles and glance peek on. My first one idled around 5% with no sim-card and everything turned off.

    Don't hesitate to exchange yours if the battery is poor.

    Oh and all the tips about draining your battery dry and let it die, then recharge it. It didn't make any difference. Just return the phone and get another one.

    wp_ss_20140120_0001.jpg
    01-20-2014 01:41 PM
  25. Ma1dere's Avatar

    Don't hesitate to exchange yours if the battery is poor.

    Oh and all the tips about draining your battery dry and let it die, then recharge it. It didn't make any difference. Just return the phone and get another one.
    For example, in Russia we dont have an official Nokia Care service center and Nokia is working with a 3rd party company. I know a lot of people who recieved a "works 8 hours with everything off, battery is ok" answer from this company in regard 1020 issues.
    On topic, I have something between your 1st phone and 2nd one. Charging it every day, tho I'm using it a lot.
    And dont let your phone die EVER. it's bad for the Li-ion battery.
    01-20-2014 05:19 PM
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