Windows Phone Preview OS Issues


Battery life for only 10 hours?


Hi!
Since I installed 8.1 on my Nokia Lumia 620 battery life dropped dramatically. Before lasted more than 24 hours with normal use (Location, Bluetooth and Wifi), and now lasts 5 or 6 hours with the same usage. Ever happened to anyone? Or is it coincidence
the battery be damaged after installation?
Best regards!
I'm experiencing the same problem on my 920. I know of 2 others having the same issue too. I think my battery is only lasting about half the time it used to.
I'm without a doubt experiencing the same effect on both a 920 and a 925
Please post this in the Phone OS forum.
http://social.msdn.microsoft.com/Forums/en-US/home?forum=winphoneosissues
I too experienced similar problems when I first installed 8.1 on a Lumia 920.
At first, I suspected that Wi-Fi was the cause as the option to disable Wi-Fi on the lock screen is not available on Lumia's, but one day I simply left my phone alone for a day (with Wi-Fi, Location and Bluetooth enabled, Wi-Fi was probably connected
as I was at home, Bluetooth would not have been connected) and noticed that the battery life was significantly improved (on average I was getting about the same 5 or 6 hours that you describe - this time I got about 18-20). Further investigation led me to
disabling "Glance"; since then my battery life has been significantly better on 8.1 than it was on 8.0 with my phone often lasting in excess of 24 hours between charges (though I only let that happen at weekends).
Hope this helps. Note that being in the UK I am unable to use Cortana so I cannot speculate as to what impact she may have on battery life but others on this forum have claimed that Cortana can also significantly reduce battery life. I have also read on
other threads that it can take some time after the upgrade for the battery life to settle but again I cannot verify this.
0
I had similar overheating and battery drain problems, which were being caused by Wifi (I turned everything else off, and then Wifi was the only suspect).
My phone is now always "Wifi Off" and the battery life is great (similar to battery life before installing 8.1 Preview).
Try disabling Wifi, then doing a restart (for safety) and see how long your battery lasts.
In my case, it was the Wifi.
I'd turned Glance off and that didn't have any effect. Now Glance is on and Wifi is permanently off, and battery life is great.

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