1. Gaurav Paul's Avatar
    After amber update a lot of people complained about poor battery life. There was indeed a drop in battery life for me as well. It used to last about 2 days which later came down to just over a day.

    However, I fiddled with some settings and updated an app and it seemed to have improved quite a lot. With my same usage pattern as before I get nearly 10-11 hrs of extra battery backup.

    Here's my settings:
    Screen Timeout: 1 minute
    Email fetch : hourly
    WiFi: Always on. --> Advanced settings--> Untick "Notify me when new networks are found" and "Keep WiFi on when screen times out".
    Bluetooth: On when required.
    NFC: Off
    Mobile Network: Always on
    Location: Always on
    Battery Saver: Off
    Backup: On
    Brightness: Automatic
    Display: Sun readability-> on; Battery Saver Brightness->on
    Glance: Peek (Night mode 2300-0800 hrs)

    Background tasks: Insider, Weather, Whatsapp.

    Updated Insider and re-calibrated the battery. (Previous in-app data is deleted).

    Let me know if it helps in improving battery life for anyone else.
    10-09-2013 11:32 AM
  2. Laura Knotek's Avatar
    I'm glad to hear that you are having better battery life now. Hopefully your suggestions will help other people.
    10-10-2013 02:26 AM
  3. Gaurav Paul's Avatar
    That's why I decided to share this with fellow "wpcentralites". Hope it helps. The WiFi setting alone increases battery back up by a good margin.
    10-10-2013 04:19 AM
  4. hs k's Avatar
    I guess you can switch off the location settings as it's of no use unless you're navigating
    10-10-2013 12:33 PM
  5. freshairr's Avatar
    I thought keeping wifi constantly on drained more battery (at least that's what was stated via an anecdote)

    And why do you have battery saver off?
    10-10-2013 12:36 PM
  6. nocial's Avatar
    Give it some time. Battery life has imporoved 20 days after Amber update on my 620. Not sure why.
    10-10-2013 12:40 PM
  7. Mio_WP's Avatar
    Saving battery by leaving WiFi on depends on usage patterns. When not always on, If You often pick up the phone and check a few things it would have to initiate WiFi each time and that could sum up to more power consumption than just leaving it on.





    Plus if You have a bad mobile data connection but good WiFi connection it will use less power when updating background tasks over WiFi.





    Leaving battery saving off theoretically should not improve battery life. However I also feel it performs better when off. Just remember to turn it on (set to auto) if you will be away from your chargers for an extended period.



    Sent from my Lumia 920 using Tapatalk
    Last edited by Mio_WP; 10-10-2013 at 01:33 PM.
    10-10-2013 12:46 PM
  8. freshairr's Avatar
    Saving battery by leaving WiFi on depends on usage patterns. When not always on, If You often pick up the phone and check a few things it would have to initiate WiFi each time and that could sum up to more power consumption than just leaving it on.



    Plus if You have a bad mobile data connection but good WiFi connection it will use less power when updating background tasks over WiFi.



    Leaving battery saving off theoretically should improve battery life. However I also feel it performs better when off. Just remember to turn it on (set to auto) if you will be away from your chargers for an extended period.


    Sent from my Lumia 920 using Tapatalk
    Very interesting. I'll have to experiment with the 2 and see if it has any noticeable affect on battery.
    10-10-2013 12:50 PM
  9. Gaurav Paul's Avatar
    I know even more battery life can be extracted by changing few settings from my current settings. But here's the thing, these settings suit my usage. Could turn off location, but don't like turning it on/off every now and then. So left it on.
    Its not advised to keep battery saver on all the time. Maybe it stretches the battery life by a couple of hrs, its not good for the battery themselves.
    10-10-2013 09:48 PM
  10. OzRob's Avatar
    ...Maybe it stretches the battery life by a couple of hrs, its not good for the battery themselves.
    What's not good for the battery? All the battery saver does is turn off things like data and background tasks. Why would this be bad for the battery?
    Qtweeder likes this.
    10-11-2013 12:26 AM
  11. connectandroid's Avatar
    tried turning off Glance ?

    and how would battery saving mode damage the battery ?

    from description all it does it stop background app auto syncing and switches to on-demand syncing only when app is launched
    10-11-2013 10:08 AM
  12. akshaypn's Avatar
    battery on my l720 is taking forever to charge..insider showing just 22% charge rate per hour..what could be wrong..my wi fi is always on...glance on peek with background..got not more than 500mbs in phone storage left...is this normal or something is wrong...its just 2.5 months old..in the beginning the charge rate was 51% then it comes down to 47 then 44 and now its between 22 and 32...want to know one more thing nokia care people are able to change the battery or not once it died out..and what would be the approx. cost after the warranty period..
    10-13-2013 12:49 PM
  13. EpicIncognitO's Avatar
    I had the same problems and believe me, A hard reset helped alot. First it showed 1 day 18 hours backup with 2 G on, after amber it came to 1 day 5 hours. After a hard reset and full calibration and a few full cycles, it easily went back to 1 day 18 hours.

    Now Im okay with my Lumia 720.
    Gaurav Paul likes this.
    10-13-2013 07:13 PM
  14. engineblock's Avatar
    One thing I read on this forum helped as well. Let your L720 discharge to below 10%. Then charge to full using AC charger (not through laptop). Do this 2-3 times, you will observe improvement in battery timing
    Gaurav Paul likes this.
    10-14-2013 09:25 AM
  15. OzRob's Avatar
    One thing I read on this forum helped as well. Let your L720 discharge to below 10%. Then charge to full using AC charger (not through laptop). Do this 2-3 times, you will observe improvement in battery timing
    Another thing to do is STOP OBSESSING with the estimated time left and just USE your phone. The estimated time is just that - an ESTIMATE. The more normally you use your phone the more accurate the reading. Also, the fact that the phone says you only have and estimated 23 hours remain doesn't mean that that's how much time you have left. If you use your phone less, you'll get more time. If you use your phone more, you'll get less time. And the more often you fire up the screen to check how much 'estimated' time you have remaining, the less time you'll have remaining because you keep turning on your screen to check how much time is remaining. Jumping through hoops to change the 'estimated' time remaining doesn't do ANYTHING to make your phone ACTUALLY last longer.

    I've had my phone tell me that it 'estimated' I had 1 day and 8 hours left after a full charge, but the phone actually lasted just over two full days. And the estimate kept changing as I used my phone. The number shown is a 'best guess'.
    AgungSWidjaya likes this.
    10-14-2013 05:42 PM
  16. hombreee's Avatar
    battery on my l720 is taking forever to charge..insider showing just 22% charge rate per hour..what could be wrong..my wi fi is always on...glance on peek with background..got not more than 500mbs in phone storage left...is this normal or something is wrong...its just 2.5 months old..in the beginning the charge rate was 51% then it comes down to 47 then 44 and now its between 22 and 32...want to know one more thing nokia care people are able to change the battery or not once it died out..and what would be the approx. cost after the warranty period..
    Use your AC charger.
    10-14-2013 05:46 PM
  17. connectandroid's Avatar
    One thing I read on this forum helped as well. Let your L720 discharge to below 10%. Then charge to full using AC charger (not through laptop). Do this 2-3 times, you will observe improvement in battery timing
    yeah that's what i have been doing for both of my 720s
    10-15-2013 11:43 PM
  18. engineblock's Avatar
    Another thing to do is STOP OBSESSING with the estimated time left and just USE your phone. The estimated time is just that - an ESTIMATE. The more normally you use your phone the more accurate the reading. Also, the fact that the phone says you only have and estimated 23 hours remain doesn't mean that that's how much time you have left. If you use your phone less, you'll get more time. If you use your phone more, you'll get less time. And the more often you fire up the screen to check how much 'estimated' time you have remaining, the less time you'll have remaining because you keep turning on your screen to check how much time is remaining. Jumping through hoops to change the 'estimated' time remaining doesn't do ANYTHING to make your phone ACTUALLY last longer.

    I've had my phone tell me that it 'estimated' I had 1 day and 8 hours left after a full charge, but the phone actually lasted just over two full days. And the estimate kept changing as I used my phone. The number shown is a 'best guess'.
    Apparently, the issue is not "Estimated Time Remaining". Sometimes drain rate goes ridiculously high, as high as -19%.

    But one more thing, if I choose "Windows Phone Style Estimation Method", it never shows drain post 2.2% and when I switch to "Battery Sense Style", during heavy usage, drain rate is shown to be 10%+ and estimated life remaining 6 hours, which is untrue but this high drain ?
    10-18-2013 04:08 PM
  19. Gaurav Paul's Avatar
    Apparently, the issue is not "Estimated Time Remaining". Sometimes drain rate goes ridiculously high, as high as -19%.

    But one more thing, if I choose "Windows Phone Style Estimation Method", it never shows drain post 2.2% and when I switch to "Battery Sense Style", during heavy usage, drain rate is shown to be 10%+ and estimated life remaining 6 hours, which is untrue but this high drain ?
    Battery usage will always vary. It uses lot of CPU+GPU processing while playing games. Whatsapp requires lot of Memory and also uses network. So you see battery drainage won't always be a constant.
    10-19-2013 12:42 AM
  20. thangpqfuhl's Avatar
    I just bougt a new lumia 720 and after the second charging , i was only be able to use it in 11 hours

    Sent from my RM-885_apac_vietnam_205 using Tapatalk
    10-21-2013 11:51 AM
  21. Gaurav Paul's Avatar
    I just bougt a new lumia 720 and after the second charging , i was only be able to use it in 11 hours

    Sent from my RM-885_apac_vietnam_205 using Tapatalk
    Depends on how you've used the phone. Apps that are memory and CPU intensive consume more power. Ex Games.
    10-21-2013 12:52 PM
  22. TripsG's Avatar
    My battery life went way up with the GDR2 and Amber update and no change in settings on my 920. It also corrected a problem I've spoken about where the battery would drain completely in under 5 hours when I was inside this thickly constructed building (a Sunday morning job I have) as it constantly searched for the LTE signal. This problem has gone almost completely away as now my battery only drains 20 to 30% in this same building post update.

    Very, very happy with Amber and GDR2. Fixed a lot of little things for me.
    Gaurav Paul likes this.
    10-21-2013 01:07 PM
  23. EpicIncognitO's Avatar
    Congrats. But the opposite has happened in my case. My 720 was a beast pre amber and I would to keep my data always on and still got around 1 day 18 hours with whatsapp, weather,wechat,6tag and other running in the background. Now its max 24 hours.
    My battery life went way up with the GDR2 and Amber update and no change in settings on my 920. It also corrected a problem I've spoken about where the battery would drain completely in under 5 hours when I was inside this thickly constructed building (a Sunday morning job I have) as it constantly searched for the LTE signal. This problem has gone almost completely away as now my battery only drains 20 to 30% in this same building post update.

    Very, very happy with Amber and GDR2. Fixed a lot of little things for me.
    10-21-2013 09:16 PM
  24. thangpqfuhl's Avatar
    Depends on how you've used the phone. Apps that are memory and CPU intensive consume more power. Ex Games.



    i only use for fb and reading news





    Sent from my RM-885_apac_vietnam_205 using Tapatalk
    10-22-2013 12:05 AM
  25. Gaurav Paul's Avatar
    i only use for fb and reading news





    Sent from my RM-885_apac_vietnam_205 using Tapatalk
    Could you give a more detailed usage pattern? I'm sure fb and reading news aren't the ONLY thing you do with your phone
    10-22-2013 12:10 AM

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