[truffled]

Am having a real problem with my new Nokia 820 battery, please can someone help.

On Friday night battery was 100% by the morning it was 48%.   Have obviously checked out the web for this problem.  Have switched off all updating (weather and news) have disabled nokia drive and everything else on on that list.

last evening I again charged it to 100%, this morning it was 52%, this morning I have been using the phone to download apps BUT all over wifi phone is now registering battery 15%.

This to me seems unacceptable as I will have to permanently have it on charge if I want to use it as a phone!

Any suggestions would be gratefully received.

thankyou

[adrianhughes]

Hi mate,

As the phone is new, try giving it a few more days and see if the battery life improves. You should read this article as it gives quite a few useful tips on how to improve battery life in your Windows Phone 8 device: http://discussions.nokia.com/t5/Nokia-Lumia/Advice-for-customers-reporting-higher-than-expected-batt...

[aspergerguy]

@truffled

Can't you use "Airplane mode" overnight or do circumstances not allow this?

[farby]

I switch off WiFi and Mobile Data during night .. but keep phone in Online mode as requred by me...So you may also try that ..

[truffled]

Thank you for your reply, yes I have complied with those suggestions and I will wait a few days.

So far (apart from the battery) it seems a really good phone but its a shame that after paying for all the bells and whistles I have to turn them off or disable them.  LOL

Lets hope that nokia can find out what the problem is swiftly and get it sorted.

[barne19801]

Hi, i have had my 820 a week now with very little improvement, i can use my phone and rapidly drop 15-20% in a 10 minute stretch, nothing intensive, just web browsing. I also tried,tap to send and it wouldn't even try it, switched the phone off and on and then went through to the screen but it still would not work.

Its a little annoying my brothers 8x is not experiencing these problems so far.

[truffled]

Thank you Farby,

seems like switching on the wifi is a major part of the problem.

Last night 100% battery - this morning (7am) 100% battery, although 5 minutes after checking that it went down to 95%.  (wifi switched off)

Now (3.15pm) its at 85%,only used the phone to check battery status.  no calls etc. so far it appears that just looking at the screen takes 5% off battery life!

Although this is an improvement, its certainly not going to last the 330 hours standby mode as advertised.

[cjlim]

Advertised standby times are based on theoratically ideal conditions which are not possible to replicate in real life. It means perfect signal type and signal and everything switched off with the phone left completely idle. The closest you will get to this time is if you disable everything and leave the phone under a telephone mast and not touch it at all for a few days. 

Those theoratical figures are used as a theoratical comparison between different handsets. It is impossible to give battery life estimates otherwise because it will be different for eveyone. Everyone uses their phone differently and use a different network and live a different distance from their nearest mast. So to compare, they use theoratical figures.

[buddler]

Hi,

I face similar problems. I've got the Lumia 820 for a week now and the longest possible period was 7:30 h of usage now. Afterwards: battery flat, having to reload.

my settings:

- wlan off

- bluetooth off

- nfc off

- only two apps with background activities enabled: wpcentral, microsoft weather (even Nokia drive is disabled)

- from 1 to 5 pushmail accounts (google and hotmail), it doesn't matter whether 1 or 5 are enabled as push

- facebook account linked to phone

- gps enabled

- live-tiles: see screenshots

usage:

- 4 to 6 calls à 5 min (20 to 30 min all in all)

- 10 times looking for mails or other notifications (not more than 2 min) --> 20 min

- 10 min browsing

--> 1 h activity!

network:

- mostly 3g+ (@home) or h (@work)... whatever that means

Nokia Care told me, I should expect at least 2 days of usage regarding my phone activities plus the only advice: I should reset the phone.

Anyone facing such battery drain with "untouched" e.g. factory settings-like lumia 820s?

PS: My work lumia 800 lasts up to 3 days with the same settings!

[cjlim]

Have you seen this thread?

http://discussions.nokia.com/t5/Nokia-Lumia/Advice-for-customers-reporting-higher-than-expected-batt...

[buddler]

Yes, I have, can you please move my posting?

Tipps there won't help either...

[wanglabs]

Hi all,

I just got my Lumia 820. I charged my phone to 100% (and unpluggled it from the power outlet) before turning in for the night. When I woke up the next morning, the battery level is still at 100% (I think it's more like close to 100%

After combing through all the nightmare posts here, I disabled everything (except for my GSM phone radio so that I can receive calls/SMS . This test (unscientifically) proved that the OS and firmware seem to be OK. The battery could be another story as some folks could have gotten "rotten" batteries.

Next, I'm gonna turn on location and leave the phone overnight tonite and will post my result.

So far, I'm loving my Lumia 820 except:

- no windows explorer? (windows mobile had it) I wanna move and copy files in the phone!

- battery status percentage not displayed in the main screen of the status bar?

- no close button (pressing the back buton all the time is a pain). Anyone knows if there are 3rd party close buttons (yeah something like I did with my windows mobile phone a while back ago)?

c ya all

[adrianhughes]

Hi mate,

Glad to hear that you are enjoying your 920 experience thus far . Not sure that there are any apps that can close apps with a button, as this is part of the Windows Phone 8 framework and doubtful that it can be modified/changed by third-party apps.

If you wish to have the battery status displayed on the lockscreen and in the main tiles (like I have set up), there is an excellent application called Battery Level for WP8 in the Store. It has received numerous updates in the past few weeks and works excellently. I must advise you though, that due to the nature of WP8, it only updates the Live Tile every 30minutes, but otherwise it works great.

As for a file manager, that is not part of WP8, they may add it later on. I have had no issue with there being no file manager, but I can understand if some users would. You can always leave feedback with Microsoft directly at the link below:

http://windowsphone.uservoice.com

[wanglabs]

Dear Adrian,

Thanks for the info.

I have just voted at the uservoice site for a file manager; apparently it's the No.1 requested feature!

Now on to my report:

- turning on location doesn't seem to sap the battery power (I guess that's bcos I didn't enable WIFI nor mobile data)

- battery still reports 100% in the morning (could this be a bug?)

I've tried enabling WIFI and the power usage seems OK:

- day 1 : 3.5 hours - about 65+ % battery drain

- day 2 : 2.5 hours - about 50+ % battery drain

The moral of the story is always turn off WIFI and mobile data when you're not using your phone.

The back of the phone is lukewarm only (I was worried about the "sizzling temperatures" complained by some users). So far no freezes or resets despite my constant mucking around with my new toy (yeah, installed tons of apps).

I hope Microsoft adds a file manager for the upcoming Windows Phone 8 update (codenamed Apollo+)