1. Sadananda Aithal's Avatar
    Of late, I am charging my lumia 1520 running wp8.1 u2 atleast TWICE daily.
    Its a 18month old phone.

    The strange behaviour is the phone switching off a minute into the "critical" percentage.
    When i plug it back in, I see there's ATLEAST 15% on most times.

    Some more details.

    I am a frequent user of the following apps:
    9gag
    aeries
    Internet explorer ( general browsing )
    facebook beta

    And I use myTube to browse the videos from channels I subscribe to.

    I did see battery drain when using Aeries a lot even before Update 2.
    Now, the drain is more prominent.

    This was the sequence of events today
    I woke up at 7 and unplugged my phone from the charger. It was at 100%.
    I watched a few videos of the new One plus 2 and the new ipod ( less than 15 mins )
    I browsed quora for about 10 mins.
    Switched off DATA and WIFI and played a bit of Stick Cricket.

    Then, I went back into Aeries twitter app.
    Browsed for about 15 minutes.

    At this moment, the phone was about 53%

    Back to Stick cricket for about 10 minutes.

    Battery criticall low.

    Shutdown!

    The time is 8:50 AM!!!

    The battery went from 100% to shutdown in about 2 hours.

    Something is really wrong with wp8.1 u2.

    Anybody else on the same boat?
    07-28-2015 12:40 AM
  2. anon(5408460)'s Avatar
    I installed a version of WP10 and then went back to 8.1 (2) and am now experiencing similar problems you are. Invariably when I have approx 55% battery life left I get a low battery warning followed by shutdown. If I plug in a charger then the phone restarts and the battery is still at 55% I can sometimes then remove the charger and it will drain normally to 6% then shutdown. It is real pain !
    07-30-2015 02:45 AM
  3. scionluna's Avatar
    I have the same problem. Unfortunately I have not gotten any updates on how to fix. I have to agree with the OP. I haven't run any other OS except Windows Phone 8.1, Denim Update.
    07-31-2015 04:01 PM

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