AT&T Lumia 920 Battery Drain on Idle Cause - Prevention - Network Signal

[mr_808]

This is the exact same thing that I've run into except I switched off the data connection altogether and just ran off wifi for a few days. I'm currently testing 3G only and have noticed better battery life when not connected to 4G. You can check out my forum post at http://forums.windowscentral.com/no...nally-figured-out-my-920-battery-problem.html

 

[fishsniffer2]

My 920 battery life has been horrible lately, turned of cellular last night with 70% battery and this morning it was completely drained,
with or without the battery saver on, it's been happening for a couple of weeks now and I don't know what to do next.HELP

 

[varuen]

mate,
same to same problem, I am facing, as u mentioned in my phone also reception seems weak for 3g network while in 2g it works fine, 4g yet not launched in india,
for this issue i already replaced my cell but in new device also problem persists, what to do? can i expect update of firmware which may solve this issue?

 

[Michael Gooding]

Wow...all this back and forth.

I was having horrible battery issues at work. I have a solid 3 bars of faux-G and 1 bar of LTE. The phone constantly wants to lock onto the LTE signal causing major battery drain. So I disabled the LTE in the ##3282 settings and battery issues are now a non-issue. For me, 3G (HSPA+) is plenty fast for me. IF I need LTE, I enable it only when I need it.

This seems to be doing the trick for me. Over a 5-hour span I've lost about 20%. Yesterday it was closer to 80%. Also of note, I've made some calls today during that stretch, whereas yesterday I just had the phone sitting on my desk all day and only picked it up to check the battery %.

 

[ys630]

Is there a difference between switching to 3G using ##3282# and using network setting?

 

[lkwaijunior]

OP, thanks for the ##3282 heads up; going to test it tomorrow.
My location tends to cause network type to fluctuate quite a bit so I'll give it a try tomorrow.

Is there a difference between switching to 3G using ##3282# and using network setting?

Yes, the network setting defines the "best network speed" your phone will hunt for.
1) If you set it to 3G from network settings and you're in a..
1.1) 3&4G-available area, you will connect to only 3G.
1.2) 2G-only area, you will connect to only 2G

2) If you set 3G from ##3282 and you're in a...
1.1) 3G available area, you will connect to 3G
1.2) Place with only 2G (no 3G), I suspect you won't connect at all. (I'm not sure about this.)

 

[Zeroplanetz]

So I've been experimenting with my l920. I'm believing its the os has leaks and what not too. Once a weak if I soft reset my phone my battery stays giving me more than a days worth of juice. But towards the end of the week its back to draining something crazy fast. Like dead in 5 hours max. I don't know what the reset does but I'm glad it helps. And it takes less than five minutes to complete it.

 

[szaboagoston]

Okay, here are my statistics. Brand new Lumia 920, came with Portico update, battery charged only after draining completely.
1st charge: lasts 9-10 hours with light-moderate use. Heating. (I get frustrated and google the problem, which leads me here.)
2nd charge: lasts 9-10 hours with light-moderate use. Heating. (Even more frustrated, but read also about that the Lithium battery needs a few charge cycles before getting optimal.)
3rd charge: lasts 6-7 hours with internet sharing turned on constantly. Heating. (Understandable)
4th charge: After 8 hours of light-moderate use, even internet sharing for 30 minutes, the battery is on 72%. (I'm relieved and happy for my new Lumia 920!)

I didn't do any "magic" settings or resets, I have 3 mail accounts pushing mails. NFC on or off doesn't make a difference. I'm on 3G.

 

[johninsj]

constant rebooting throughout the day, probably 2-5 per day.
***
Also, since I've gotten this phone, there have been multple reboots every single day I've had it, since going straight 3g last night, I have had 0 random reboots.

It's not supposed to reboot several times a day. Where are you, what carrier?

 

[wilsey]

Actually, before I decided to get Lumia 920, I was kinda worried about the reboot problem after I read it. But, until now, more than 2 months of usage, I have zero random reboots.
Could this random reboots only affected the device with LTE enabled, like the one on AT&T, as mine is the International unlock version RM-821.