1. sguy156's Avatar
    Has anyone noticed lower battery life on 1520 after a year . Before I used to get 12-18 hrs now its down to 7 .
    How can I find out how many battery cycles this phone has left...
    Rowland Jonathan1 likes this.
    05-12-2015 07:49 PM
  2. Skulls138's Avatar
    12-18 hours sounds like heavy usage. The more you charge, the shorter it'll last. I charge mine every few days.
    05-12-2015 08:23 PM
  3. Diego Ceccacci's Avatar
    Wow, 12-18 hours is very short life for a 3400 mha. I charge mine every 2 days (sometimes it has still 40%+)
    I take this opportunity for ask a question about the battery: mine seems to discharge fast when it has 100% (for example, it takes 1h to go from 100 to 97 but almost 1.5h to go from 97 to 96), is that a problem i can resolve?
    05-13-2015 07:00 AM
  4. Skulls138's Avatar
    Wow, 12-18 hours is very short life for a 3400 mha. I charge mine every 2 days (sometimes it has still 40%+)
    I take this opportunity for ask a question about the battery: mine seems to discharge fast when it has 100% (for example, it takes 1h to go from 100 to 97 but almost 1.5h to go from 97 to 96), is that a problem i can resolve?
    I've noticed that in several of my Lumias. It has to do with the battery charging slowly from 95-100. Some kind of trickling method to not overcharge the battery.
    05-13-2015 03:25 PM
  5. Paul1266's Avatar
    Wow, 12-18 hours is very short life for a 3400 mha. I charge mine every 2 days (sometimes it has still 40%+)
    I take this opportunity for ask a question about the battery: mine seems to discharge fast when it has 100% (for example, it takes 1h to go from 100 to 97 but almost 1.5h to go from 97 to 96), is that a problem i can resolve?
    Its exactly the same with my 1520 so not unusual I think. Earlier models (1020, 925, 920, 820 etc) seem to have a different profile. All those handsets (in my experience) would sit at 100% for hours before dropping fairly steadily. My 735 acts the same way as the 1520...it will stay at 100% for maybe 20 minutes and then drop a bit before steadying. Its probably more honest but can provoke 'Battery drain anxiety' I think. Overall, the battery life is much better though. My 1520 has been used fairly heavily today (few calls, periodic browsing and texting) and I am still at 73% after 13 hours. That's not too shabby in my book. Still beats anything else I've ever used for screen on time. Only the Huawei Ascend Mate 2 I have gets close and that has a 4100 mah battery with a lesser screen resolution.
    05-13-2015 03:44 PM
  6. sguy156's Avatar
    Mine went from 100% to 89 % in 2 hours and discharge rate is -3.0% per hour ...
    05-13-2015 08:54 PM
  7. Montpbm's Avatar
    Yep it's different
    05-13-2015 08:59 PM
  8. Alfa Kapa's Avatar
    Mine went from 100% to 89 % in 2 hours and discharge rate is -3.0% per hour ...
    It is not a usual discharge rate for this phone's battery. Your battery isn't even that old for not holding it's charge!
    So you should really choose which apps you want running in the background, and also check their battery usage, it might have to do with
    a bad written app.

    On a lumia 630 I found that survivalcraft app, was consuming 6% per hour and the worst part was that battery saver won't even show this app's usage.
    After deleting it, everything when back to normal.
    05-14-2015 06:37 AM
  9. Witness's Avatar
    12-18 hours sounds like heavy usage. The more you charge, the shorter it'll last. I charge mine every few days.
    The charging that shortens the battery life applies to Ni-Cad and Ni-Mh batteries. L-ion batteries which are standard in phones now do not suffer from that issue known as a memory effect. L-ion batteries are best kept charged often (not saying to plug it in all day) and running it down actually reduces the battery's performance.
    05-14-2015 01:34 PM
  10. Paul1266's Avatar
    Witness is correct. 100%. Read up on it, there is plenty of technical data out. Little and often. Draining the battery right down will not help and will stress the cell more.
    Laura Knotek and Witness like this.
    05-14-2015 02:21 PM
  11. Diego Ceccacci's Avatar
    So is it better recharge it everyday? Dont you risk ruin your battery doing that? Isit better kept it charged or charge it every 2 days when it is 40%?
    05-22-2015 10:38 AM
  12. Paul1266's Avatar
    Frequency is irrelevant. Its the total cycles that count. I top up every day even though I don't need to with my 1520 rarely dropping below 70% - struggle to use more than 30% in a single day.
    xandros9 likes this.
    05-22-2015 10:51 AM
  13. Diego Ceccacci's Avatar
    Frequency is irrelevant. Its the total cycles that count. I top up every day even though I don't need to with my 1520 rarely dropping below 70% - struggle to use more than 30% in a single day.
    So you think charge everyday is better? I tought it count as a cycle
    05-23-2015 10:46 AM
  14. avchdman55's Avatar
    So you think charge everyday is better? I tought it count as a cycle
    if your phone goes down to 50%, and you recharge it, it counts as half a cycle. if you do it again, you now charged one full cycle. if it goes down 25% and you recharge, doing this 4 times equals one cycle. so basically, its not how many times you put your phone in the charge. its best to keep your phone in the charger when you use it, because this reduces your cycle usage.
    05-23-2015 02:34 PM
  15. Diego Ceccacci's Avatar
    if your phone goes down to 50%, and you recharge it, it counts as half a cycle. if you do it again, you now charged one full cycle. if it goes down 25% and you recharge, doing this 4 times equals one cycle. so basically, its not how many times you put your phone in the charge. its best to keep your phone in the charger when you use it, because this reduces your cycle usage.
    Ty for the info. I think ill keep recharging every 48 h then
    05-23-2015 03:22 PM
  16. HeyCori's Avatar
    Ars has a quick write up about l-ion batteries (which I admittedly don't follow).

    Ask Ars: The best way to use a lithium-ion battery, redux | Ars Technica

    I usually charge when my phone is around 40-60%. I don't charge overnight though. I'll charge before or at work.

    I used to get 2-day use fairly regularly but my usage has jumped up considerably in the past year. I do a lot more video streaming and photos. And I've always been a heavy music listener. Now I top off in the morning more than I used to.

    Occasionally I'll misjudge my use and drop to 20% but an outlet is never far away. I don't think I've ever gone below 15%.
    05-24-2015 06:39 AM
  17. Timbre70's Avatar
    So you think charge everyday is better? I tought it count as a cycle
    I charge it every other hours when I have access to PowerPoint.
    05-24-2015 06:28 PM
  18. sguy156's Avatar
    I only get 8 hours with light use ,don't know if that's good or not ..
    06-12-2015 07:04 AM
  19. Kavindu Thrimanne's Avatar
    Well when you charge, the device gets heated a bit. So after you unplug the charger, due to the heat left from charging, your phone might discharge a bit faster. After awhile the device will lose the heat and the battery will discharge slowly.
    Timbre70 likes this.
    06-13-2015 04:22 AM
  20. tboy2000's Avatar
    I just don't get how you guys get 2 days use. Every time I charge my phone and take it off the charger at 100% it says on average 18hrs left on stand by. Every time. Is my battery faulty?
    06-13-2015 05:20 AM
  21. Timbre70's Avatar
    I just don't get how you guys get 2 days use. Every time I charge my phone and take it off the charger at 100% it says on average 18hrs left on stand by. Every time. Is my battery faulty?
    No. Your battery status simply tell you the expected duration based on your past usage. Take it with a pinch of salt though.

    There is no need to shut down your phone too. Doing so actually consumes more power.
    Last edited by Timbre70; 06-15-2015 at 08:21 AM.
    06-14-2015 06:29 PM
  22. nukesheart1520's Avatar
    I really wonder why you guys have longer battery lives than mine, same phones. I own 1520 and 830, reviewers said 1520 lasts about 3 days regular use, with 830 on about a day and a half. Mine only does 10-12 hours and 7-8 hours respectively.

    I have a few hunch on why:
    [LIST]
    • because I live in the Philippines, it's freaky hot in here..might this cause the huge battery drain?
    • We have poor signals here. Constantly changing mobile data signals between E, H, H+ and 4G, depends on location..but battery drains faster when travelling due to that, i guess
    tboy2000 and Tom Snyder like this.
    06-16-2015 08:47 PM
  23. tboy2000's Avatar
    I really wonder why you guys have longer battery lives than mine, same phones. I own 1520 and 830, reviewers said 1520 lasts about 3 days regular use, with 830 on about a day and a half. Mine only does 10-12 hours and 7-8 hours respectively.
    Yes I don't get how they get so much life out of it. Under 18 hours of average use.
    06-16-2015 09:36 PM
  24. Paul1266's Avatar
    Its right there...'regular use'. We don't pick our phones up every 2 minutes. Believe it or not, most people aren't glued to their screen 24/7. I average about 30 mins of calls and probably 90-120 mins of mixed browsing over the course of a day and that usually burns about 30% of my battery. Most battery tests and reviews are based on perceived average usage not heavy users. If that's you you should check out the reviews and tests that focus purely on 'on screen' time. The other huge factor is signal strength which can play a huge part as well as ambient heat (prolonged ambient temperatures over 35c can seriously damage battery performance). Yes, I am one of those happy band who only charges their phone every 2-3 days. We're not lying or exaggerating, we just have other things in our lives ;) the 1520 has excellent battery stamina, its right up there in all the tests I've read. If you are only ekeing a few hours from it you are a heavy user and would struggle with anything because simply put there isnt much out there that can better this models stamina.
    nukesheart1520 likes this.
    06-17-2015 04:40 AM
  25. Carioca Porto's Avatar
    search for the topic "Weather app live tile battery drain, how can I fix it?"

    sorry I cant post links here yet
    06-19-2015 01:55 PM

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