1. Alex Mason86's Avatar
    A bit displeased with my 1520 lately for having pretty bad battery life. Today for example its gobbled over 20% in 2 hours just sat in my pocket doing nothing. No programs running, most programs are blocked from running in the background anyway.

    However, I suspect this maybe something to do with where I work. You see mobile signal here is at best GPRS (G) and very faint (1 bar if you are lucky). Would it be that the phone is juicing up the atennas to hold on to that semblance of a signal?

    As the title alludes to the phone is getting rather hot just in my pocket (which is rather nice on a cold day!) and you can really feel the heat coming from the back of the phone along the top, above the camera. Is the above a likely explanation or is there something more worrying afoot?
    06-02-2014 04:16 AM
  2. WanderingTraveler's Avatar
    Your signal is extremely weak, eh? Try switching on airplane mode. That should fix the problem.
    06-02-2014 04:18 AM
  3. Alex Mason86's Avatar
    Yes, just trying that now. Thankfully there is office WiFi which I can keep on, but I am expecting calls today as well so I dont think I can keep airplane mode on all day.

    It seems to have cooled somewhat, but the top right hand corner (looking from the back) is still quite hot to the touch. Something is amiss I think.
    06-02-2014 04:22 AM
  4. Tzarevitch's Avatar
    This happens with mine too occasionally. I suspect there is something running in the background that is causing it to heat up and gobbling battery charge. It actually happened occasionally on my Lumia 920 occasionally too. Whenever it happens I just go in and shut down everything running in the background and that seems to take care of it. I just got myself in the habit of checking for and shutting down background processes from time to time.
    06-02-2014 09:58 AM
  5. BaritoneGuy's Avatar
    Yes, just trying that now. Thankfully there is office WiFi which I can keep on, but I am expecting calls today as well so I dont think I can keep airplane mode on all day.

    It seems to have cooled somewhat, but the top right hand corner (looking from the back) is still quite hot to the touch. Something is amiss I think.
    You can also just turn off the cellular data connection and leave the phone functionality on.
    fdruid likes this.
    06-02-2014 06:54 PM
  6. rbiasca's Avatar
    My phone does this at times as well, even when I have great signal. It did it Sunday morning, and it normally has great battery life, so I can really tell when something is weird and the phone is hot. I am wondering if something strange isn't going on with an update because I notice a lot of these comments all at the same time. They seem to come in bunches.
    06-03-2014 02:24 PM
  7. Christopher Lindsay's Avatar
    I've never had this issue with mine. Maybe a case might help a little with the heat.
    06-03-2014 02:40 PM
  8. Sixto Nuno Ruiz's Avatar
    I have the same problem, ever since i upgraded to 8.1 Preview, there's a leak of battery and a lot of heat, specially in the backside by the camara sensor, sometime the camera application pop up without my command. all i can do is turn off and on again my mobile, this seems to work. but im pretty sure it because of the WP 8.1 Preview for Developers
    06-03-2014 02:55 PM
  9. Byrese's Avatar
    I don't have this problem though I did have some battery issues before which are now solved. It's really about the right settings. I now don't get below 50 percent with medium use and 30 with heavy in a day. It's probably losing power due to it constantly searching for the LTE signal in and out.
    06-03-2014 03:01 PM
  10. Alex Mason86's Avatar
    Bit of an update

    It really went for it last night! I went training as usual and had left my phone in my bag on poolside. There is pretty poor reception at the pool. Usually just G level of signal and perhaps 2 bars. When I got out after my session I reached in for my phone and it was scorchio! Really hot to the touch. It had reduced battery from 83% to 51% as well! I then took a short detour home via the super market, probably about another 20 minutes or so before I got home where I found another 10% gone from the battery. It basically continued like this (and I closed all apps) until I had to switch off and stick it on charge.

    No idea what caused that, but it seems once it had started plummeting, it simply continued and would've kept going until it ran the battery flat by the looks of things.

    Hopefully this is just requiring the Cyan update to fix.
    06-04-2014 11:36 AM
  11. Christopher Lindsay's Avatar
    Bit of an update

    It really went for it last night! I went training as usual and had left my phone in my bag on poolside. There is pretty poor reception at the pool. Usually just G level of signal and perhaps 2 bars. When I got out after my session I reached in for my phone and it was scorchio! Really hot to the touch. It had reduced battery from 83% to 51% as well! I then took a short detour home via the super market, probably about another 20 minutes or so before I got home where I found another 10% gone from the battery. It basically continued like this (and I closed all apps) until I had to switch off and stick it on charge.

    No idea what caused that, but it seems once it had started plummeting, it simply continued and would've kept going until it ran the battery flat by the looks of things.

    Hopefully this is just requiring the Cyan update to fix.
    Maybe a soft reset can fix it
    06-04-2014 01:53 PM
  12. AvatarEW's Avatar
    A bit displeased with my 1520 lately for having pretty bad battery life. Today for example its gobbled over 20% in 2 hours just sat in my pocket doing nothing. No programs running, most programs are blocked from running in the background anyway.

    However, I suspect this maybe something to do with where I work. You see mobile signal here is at best GPRS (G) and very faint (1 bar if you are lucky). Would it be that the phone is juicing up the atennas to hold on to that semblance of a signal?

    As the title alludes to the phone is getting rather hot just in my pocket (which is rather nice on a cold day!) and you can really feel the heat coming from the back of the phone along the top, above the camera. Is the above a likely explanation or is there something more worrying afoot?

    This issue occurs with every phone and the cause is your cellular signal.

    When any phone cannot find a signal, it will constantly attempt to find a signal and use the battery

    Steps to mitigate:

    Turn on roaming (will incur charges depending on carrier).

    Turn off cellular service and use WiFi (if available).
    06-04-2014 05:01 PM
  13. rbiasca's Avatar
    It is interesting, I have noticed that my battery life is really great after one of these drain days
    06-04-2014 10:02 PM
  14. Alex Mason86's Avatar
    It is interesting, I have noticed that my battery life is really great after one of these drain days
    Actually now that you say this.... yes I am noticing the same. The phone today has used less than 10% from when I took it off charge at 7 am this morning, 6 hours and < 10%. The odd thing is I am in exactly the same place every day so the signal is exactly the same. Poor to non-existent. So why does it heat up like a hot potato some days and not on others?

    My iPhone would also drain faster when in weak signal. That is just how it is, but it wouldn't ever be a dire situation of mugging approx 30%/hr (of a 3400 mAh battery as well!) nor would it get so toasty!

    So while I agree that the process occurs, the resulting situation with this particular phone (ridiculous heat and battery drainage) is clearly a problem.
    06-05-2014 07:10 AM
  15. Will6371's Avatar
    Do you have Cortana live tile?
    06-05-2014 12:07 PM
  16. hack14u's Avatar
    My phone was sitting on the sofa with nothing but Glance screen on. I just happened to pick it up and this thing if it got any hotter could have started melting. It was actually kind of scary. It was in the same place as others have noted, towards the top, with Win 8.1 Dev, too. Battery was running down quick and it locked up at the slide down to power off screen. Phone would not respond at all. I held the power and vol up button and it finally shut down, and now it is just sitting on my counter. I have become afraid of this thing. Those big batteries don't play around and it was so hot I was afraid of it blowing up or something. It has never, ever gotten this hot, but I can't say if it's due to updates, or Glance, since this was my first time leaving it on at the always setting.
    06-05-2014 07:38 PM
  17. MDK22's Avatar
    It is interesting, I have noticed that my battery life is really great after one of these drain days
    Which begs the question, is the Battery draining abnormally ... or is whatever metric reporting it incorrectly ?

    I unlocked my phone after some usage, today (was not on a charger) and Battery said 63%, then jumped to 68% - perhaps the metering of charge is waiting for Lumia Cyan update.
    06-05-2014 07:40 PM
  18. Alex Mason86's Avatar
    Do you have Cortana live tile?
    Yes I do have the cortana live tile. For the time being. I don't really use cortana much but I do find it useful on a morning when it gives me a heads up on my commute. That is rather spiffy. But I gather cortana will be paging things like the gps periodically for its location aware services.

    Again, the phone is behaving perfectly today (as it did yesterday and wednesday)! But on tuesday it nearly had a melt down. Haven't changed a single setting either!
    06-06-2014 05:54 AM
  19. woutwout's Avatar
    Had the same issue on 8.1, several times. It's definitely a process running like crazy in the background. Closing all apps in the multi tasking window always solved the problem for me. Give it a try
    06-06-2014 08:32 AM
  20. rbiasca's Avatar
    The place were they get hot is were the processer is, so obviously something is happening and that thing is running like crazy. I have had the phone completely apart and can verify that the top corner to the right of the camera is where the snapdragon 800 is
    06-06-2014 11:17 PM
  21. stnm's Avatar
    Happened to me as well the other day. WP 8.1.
    06-07-2014 09:54 AM
  22. hack14u's Avatar
    Had the same issue on 8.1, several times. It's definitely a process running like crazy in the background. Closing all apps in the multi tasking window always solved the problem for me. Give it a try
    I had no apps running, just the Glance on, and the thing was smoking hot. This is weird.
    06-07-2014 09:28 PM
  23. Alex Mason86's Avatar
    It got hot and drained battery again last night. But this was after playing 2048, the same game I had played the last time it got really hot. It even continues once the app is closed from the multitasking pane. It doesn't drain so bad when actually plain the game, just when you stop and close it to background. Perhaps there is some issue with certain apps being suspended and then eventually being closed. I.e swipe it down to close but for whatever reason the process gets stuck despite the app appearing to be closed fully. The processor then is stuck in some kind of loop that only a reset will solve.
    06-08-2014 06:07 AM

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