- 01-09-2013, 04:20 AM #951
Very strange battery performance at the moment. Im currently going for the full drain and full recharge route.
So at midnight my phone was on 31% so i though forget charging if and do a full drain. Wake up around 7ish and the battery is on 4% im like wtf its lost over 25% in standby mode. So i snooze for abit til 8 Am and the phone switches off so i switch it bk on and it currently says 0%. Time is now 9:20am and its still going on 0%. Surely that means the problem lies with the software and not the actual battery? I will post again when the battery finally does die fully.
- 01-09-2013, 09:54 AM #953
- 01-09-2013, 10:31 AM #954
- 01-09-2013, 11:32 AM #955
I've been having serious issues lately, too. I have the latest portico update, and have noticed with minimal use the battery drains quick. 100% after an all-night charge, unplugged at 6am, by 10am typically down to 60%, by noon 30%, and this is really, really not using it much. Not totally idle, but checking email a few times, a few short phone calls, a little surfing. No gaming, no videos, nothing straining, and I've never had Skype on there. Here's what I've tried so far:
-turned off wifi and bluetooth --> no improvement
-uninstalled gMaps --> no improvement
-uninstalled Facebool --> no improvement
-background tasks running: limited to Battery Level for WP8, CNN, WeatherFlow, WPCentral :) --> no improvement but haven't tried turning those ones off yet
-powered phone completely off for 5 min, restarted --> no improvement
-yesterday, for 1st time ever, drained battery until the phone turned off, then charged back. today will let it run down to 0% again and recharge. plan on doing that cycle 3 full times. So far, after 1 cycle, no big changes.
-if that fails, I was going to do a soft reset.
-if THAT fails, hard reset
-if THAT fails, uninstall other apps?!?!?!
Uggh, this is frustrating, i have this bomber phone that I'm afraid to unleash to it's full potential.
01-09-2013, 11:40 AM #956
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I've had a Lumia 920 for the past week or so. Love it's look and power. But I am concerned about battery drain, particularly with video and games. What's the typical drop in percentage when running a YouTube video or movie? I'm losing a percentage point every other minute. I bench tested it against my HTC Vivid and the Vivid held its charge much better on video. Gaming, even low-level games like the Paperboy ripoff, drain the battery at about this rate as well.
What should be my target for this phone? Note that it doesn't seem to matter if I turn off Nokia Drive, background tasks or turn on airplane mode.
I'm hoping that it's true that the battery gets stronger with each charge. It has been holding its charge better after it hits 100% (for instance, I can run video for about a half hour before it loses a percentage point) but drops back to its old rate after the honeymoon period.I downloaded Battery Sense and according to it the phone loses up to 32% per hour when video is running. I also notice that the battery loses 4/5% after I reboot the phone.
- 01-09-2013, 11:44 AM #957
Just wanted to update. It's been nearly 24 hours since I calibrated and unplugged my phone. With some light use (30 minutes of music, 15 minute emails, 5 background tasks), I currently have 67%. Idle % drain has increased from 1 per hour to 2. I'm going to see if I can get through the work day.
- 01-09-2013, 12:46 PM #960
The only thing that is normal is that the 920 battery goes down quicker than people expect.
Why is an unknown quantity... it appears quite random to me. Just when you think you see a pattern, you don't.
The only thing I'll say for sure is the phone is capable of good battery life, it just rarely provides it.
- 01-09-2013, 04:34 PM #964
some interesting data i just collected. No phone charging during this time. I recorded the time/relative activity in between checks / reported battery level / reported use time left
start test @ 11:45am / 67% / 19 hrs 30 min
minimal use >> 12:00 / 64% / 9hrs
minimal use >> 12:10 / 60% / 8hrs
modest use >> 12:25 / 58% / 5hrs
no use >> 12:45 / 58% / 3hrs 10 min
minimal use >> 1:00 / 56% / 13hrs 30 min
no use >> 1:30 / 55% / 19hrs 20 min
On the one hand, this is only a 12% drop in 1hr 45min which is great, but also note that was with what i'd consider to be very mild use.
More odd is how rapidly the time use left prediction dropped, and then what the **** with the sudden uptick??
- 01-10-2013, 12:21 AM #966
01-10-2013, 02:07 AM #968
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Lithium-ion polymer battery doesn't hold on charge that well but has a better aging effect. The Lithium-ion, on the other hand has a better hold on charge but battery aging is increased. And to note returning your phone because of battery standby times wont solve your problem. Even when i got my phone the battery standby time was unreal. I use to get like 2-3 hours of use with everything turn off and only used the internet. Battery are like cars they need a trial run in time. Just like a car. The longer you us it and charge it the better it becomes. Now my phone averages 1day 6 hours everyday on standby for almost a month now. Consistently!
And also if you download all the battery indicators apps you will see that all apps show different battery times (inaccurate readings of battery times). I think unstable apps are main problem to fast drain in battery But i know Nokia gathers these information and will soon fix problem or reduce it substantially.
Last edited by Louis Lau; 01-10-2013 at 03:00 AM.
- 01-10-2013, 10:29 AM #969
I bought my Lumia 920 yesterday, when I put it to charge it was 10% left, and when I started using it today it was on 100%, after 4 hours I got a warning that there was only 10% left. Now that is not ok, the phone should at least last 8 hours.. And I thought my iPhone had short battery life.... I will do some more testing this weekend otherwise I have to return it and get another one.
01-10-2013, 10:51 AM #970
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- 01-10-2013, 11:20 AM #971
After 1 conditioning cycle I saw HUGE improvements. Yesterday at 6:00am I pulled my phone off the charger at 100% after having let it drain to 0 and auto-shutting off. (I've had the phone for 3-4 weeks and foolishly never did this before yesterday)
With moderate use yesterday, I was still at 20% or thereabouts at 8pm when I got home, no charging during the day! In fact, it was at 11% when I was ready for bed at 10:30 last night, and I let it sit idle overnight without charging. This morning at 6:00 am it was still at 5%. 24 hours!!
I used it heavy until it drained and turned off, so I'm now charging it back for conditioning cycle #2. Hopefully this does the trick. If not, I will turn off those Xbox Music settings like you suggested, thanks I really appreciate that tip. In fact I did go ahead and turn off the 2nd one, since I don't even have music stored on the cloud. I like to see album art and use the DJ mixes sometime, so for now I'll leave that 1st one on and see what happens.
- 01-10-2013, 12:39 PM #972
My Phone seem to be something wrong with.... it use about 3% every 5 minutes (even after turning off everything you guys suggested). According to the phone it has 4 hours left (1 hour since last charge), thats only 5 hours until its empty, thats terrible, I called my store and will get it replaced. One question though, When I received it I did not start off by charging it to 100% but used it imidiatly instead untill 10% remained, when I get the new phone, should I start off by charging it over night or does that not matter?
- 01-11-2013, 02:34 AM #975
Your battery has been partially charged at the factory, but you may need to recharge it before you can switch the phone on for the first time.
Make sure you use a compatible USB charger to charge your phone.
Nokia Lumia 920 User Guide - Charge your phone - Nokia - USA
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