1. Eabin Sai's Avatar
    Guys I'm having a prob my battery drains about 10% in a hour in my 1520 ...when i was in w8 for the last month I had better backup after going to 8.1 latest I experience it..is it a software prob or my battery...im worried pls help me guys...sometimes its normal sometimes it drains a bit..within 20 min from 100% it got now to 87%
    07-24-2015 03:56 PM
  2. 8mir's Avatar
    Try to change the cable
    07-25-2015 06:02 PM
  3. cane prevost1's Avatar
    Go into systems and check the battery stats. May give you a clue as to which program is the culprit. Often it's a program gone rogue.
    07-26-2015 02:22 PM
  4. jfa1's Avatar
    how many apps do you have installed? do you have a lot of apps enabled to run in the background If you're not using apps you can uninstall them and re install when you need it. that should cut back on the drain rate, Also you might try switching to dark theme.
    07-28-2015 05:43 AM
  5. Aldrich Uyliong's Avatar
    I just bought a 1520 with WP8.1 Update 1 to replace my 1320 and immediately experienced this same phenomenon.

    Of course, I recognized that the 1520 was always going to use up more power that the 1320 due to the combination of the bigger and faster quad core processor, double the RAM and the 1080p screen but I was shocked how much more quickly the 1520 ate up power compared to the 1320 and thought I was about to regret upgrading. The 1320 (with no battery saver until below 20% and brightness set on automatic) could last an hour and change while surfing the internet from 100% before it ticks 99% while the 1520 would eat up that much power in 20 minutes while on standby with everything switched off. And this is all with dark theme. For the first four days I was bewildered on how to solve this problem. I thought I probably bought a lemon with a busted battery.

    I also didn't realize the capacitive buttons are permanently illuminated whenever you used the phone (even in daylight). The 1320's touch buttons by contrast are painted on. I think if there was some way to manually switch off the led lights or control the brightness for the buttons, battery life would be massively increased. Speaking of which, does anyone know how to do that on WP 8.1 Update 1? Right now, I've found a band-aid solution in the form of putting the phone on battery saver while keeping display brightness low (at 30%) or on automatic (30% brightness as well). With that setup, even if I was surfing the web, my power reserve nearly matched that of my old 1320 while at the same time my screen brightness/contrast is exactly where I want it to be: blacks are deep, whites are well-illuminated but subdued while the live tiles still look gorgeous. As far as performance was concerned, the 1520 doesn't take much of a hit with this setup. It's processing capabilities are so vast, even with battery saver on, it is still a powerhouse.

    A more concerning development is that GT Racing 2 doesn't seem to download properly on the phone. Every time I've erased and reinstalled the app, the text and graphics are an undecipherable mess. What's with that? And why is CSR Racing not downloading ever since its update?
    Last edited by Aldrich Uyliong; 07-28-2015 at 06:42 AM.
    07-28-2015 06:31 AM
  6. Wolfseye's Avatar
    I dont have that many Games installed, nore do I play a lot, but my 1520s battery works usually 1 1/2 to 2 days. But then, I dont use this phone mainly atm, i still use my Note 4 mostly. I am waiting for WP10 to produce more apps that I can use. But using Whatsapp and the usual stuff, I still last 1 1/2 days and max 2 days for sure.
    07-28-2015 07:40 AM
  7. Eabin Sai's Avatar
    A week before I downgraded to windows 8 at that time my battery was awesome like a unlimited one battery drain was less it stayed for 1 1/2 day..after I got updated to denim then I get all these ..today within 15min from 99% it went to 88%... do u guys experience such problem..I love my 1520 but this little makes me mad..
    07-29-2015 12:27 PM

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