810 here from T-Mobile and I have the same issue with battery drain. phone barely makes it from 4am to 8pm on a charge with little to moderate use. Nokia need to issue a firmware update to fix this...
After 2 week of running 920, the battery lifespan still very suck. Hard reset / restart shown battery meter is 100% accurate after charging, no false meter reading from the phone.
Battery life is great (can last for 3 days) after turning off all the services, including live tile, and i got to use it like nokia classic 3310 phone .... what the point to have a flagship smartphone?
CPU get hot easily, it could be some inner control problem for windows phone 8, it hot and drain the battery about 15% per hour. I scare to use this phone with such battery performance.
With all the background services running, Andriod phone battery still perform well in heavy use.
I wishes nokia & microsoft looking on this issue seriously, otherwise, no one dare to try their flagship smartphone. thanks.
i have my 820 and charge it till full and by mid morning while sleeping it is dead. i have no games on it and not used maps etc. i used three phone calls and seven texts. i have checked holding back buttn down to see if anything running and nothing. thsi is the worst phone i have had for battery since mobile phones were invented. i cant risk going out all day in case i run out of battery and therefore become un contactable. i wanted this phone to use on the net and update on racing while at the races next week but i think by time i arrive i would of run out of battery.
i have used nokia forever and am very very disapointed with this phone.
nothing else is used i have not even put an email acount on it as yet and have loaded no apps at all though wanted couple of games for the kids.
am i going to have to get car chargers and carry charger and stop and plug in every where i go?
on charge now two hours and by midnight it will be dead again?
thoughts please before it goes back to the store
I've a Lumia 820 for 4 month now and exxperienced the hot battery drain as well. But from my experience I can
say, that especially the complex graphics apps are worst, which drain my battery hot, which are:
Here (Nokia) Drive+
Camera & Camera lenses
Office and Sky Drive
Although I used a RSS (Google) Reader, like e.g. "Feed Reader", and found it drained my battery quick, but when I changed it to "Nextgen" Reader, the battery drain compared was far less.
In standby I found out that if you use the darker accent colours it last longer than using the brighter ones.
I realized, ones, my battery gets hot, I can't really stop it from draining quick, even closing all these apps unless
I switch off/on my phone which helps and the phone cools down and the battery drain is reasonable "normal".
Same issue. cant rely on it if taking it out??/ and when dead it will not turn on straight away when charged so have to wait untilm its charged a fair bit then it comes into live.dont really want it if cant go out and use it
2013-03-12 2:54 - edited 2013-03-12 3:05
What happens when the phone is purchased at a duty free shop at an airport of a country you may not visit again? Nobody is telling you that phones bought outside Europe are not covered by warranty in your own country.
I would suggest you to rest your phone to factory.. This can be done from Settings>About> and then select the option to reset to factory.. (assuming you have backed up your content) I only needed my contacts which were backed up to my live account.
The reason i ask to do this is because i noticed the same thing.. Even when the phone was not in use i was loosing battery.. This is because of some specifice app.. After reset i setup my exchange account. My live account downloaded whatsapp ( used by my friends (Group) to keep us updated on daily plans).
Charged the battery before going to sleep in the night and then unplugged. Lo and behold the battery was still 100% in the morning.. Post this be very selective on the Apps you down load an do them one by one to notice any degradation in battery after installing the app.
One of the problem i felt was once i linked facebook and it started putting pictures on my lock screen.. And also once i downloaded on of the connectivity manager apps which give you shortcuts to the connectivity (wifi, Bluetooth) i suddenly started seen huge power reduction.. Skype is agian something i have not yet installed. Anyway point being go one by one on each app and give one full day before you install the next.. If you see reduction in battery delete the app and analyze again.. I am really happy with the battery performance i am getting .. I have over this taken all the steps listed on the nokia help page to improve battery life.. Where i have wifi i keep that on and disable data on the network.. This helps as well as you need only one source for connectivity..
Hope this helps..
I purchased Nokia Lumia 820 three days ago.
and i have not installed any app yet.
i charged it 100% and left it on stand by with no data connection active. the battery died in less than 6 hours.
i wonder how long it will run if i start browsing at 3G speed.
i don't think it will last more than 2 hours.
is it a universal problem or only mine?
You might have seen or read this answer before. Some might even tried these steps but then again, to let you know, there're many features in your Nokia Lumia phone which increase the demand on battery power and reduce the battery life time. For example if the signal strength of the mobile network varies much in your area, your phone must scan for the available network repeatedly. This increases the demand on battery power.
You can set your phone to automatically save power when the battery charge level is low. To check the battery status and switch battery saver mode on, go to Settings > battery saver.
To choose when you want battery saver mode to be activated, switch Battery saver toggle to On and tap advanced.
Note: When Battery Saver is on, your phone will no longer automatically receive email and calendar updates, update some Live Tiles and allow apps to run in the background.
If you are listening to music or otherwise using your phone, but do not want to make or receive calls, switch airplane (flight) mode on under the Settings menu.
Use network connections selectively
You can visit this link: http://www.windowsphone.com/en-us/how-to/wp8/basic
Note: If the battery drains faster even there is no active feature or applications, try to switch off the power and then switch back on. The battery may also be worn out and needs to be replacing with a new one.
Hope these information help you.