Everyone in this thread knows this is a developer preview and is a discussion about battery issues and what is causing it not ******** about it. the battery drain isn't consistent among us. So you say its not the OS but then you say its a preview and not optimized?? Ummmm so yes its is the OS
It is not the fault of the OS, read above.
I'm pretty sure it is the fault of the OS. I have been testing and have come to the conclusion of another poster on a smaller site. It is to do with Location and the new Geo fencing feature, which checks GPS in the background and doesn't even show the location icon while doing it. I have a second WP8.1 that stays at home and this doesn't have any battery issues, but the phone I travel with does. I'm starting to remember each time the phone gets hot and its while I'm traveling. I've actually turned of location now as the phone was pretty unusable. I now have the same battery life as I used to have in 8.0.
Next time your phone gets hot whilst not really using it...are you traveling/moving around ?
I'm pretty sure it is the fault of the OS. I have been testing and have come to the conclusion of another poster on a smaller site. It is to do with Location and the new Geo fencing feature, which checks GPS in the background and doesn't even show the location icon while doing it. I have a second WP8.1 that stays at home and this doesn't have any battery issues, but the phone I travel with does. I'm starting to remember each time the phone gets hot and its while I'm traveling. I've actually turned of location now as the phone was pretty unusable. I now have the same battery life as I used to have in 8.0.
Next time your phone gets hot whilst not really using it...are you traveling/moving around ?
If it is the OS the same should be happening with all phones equally, which it is not.
Phones react differently, some not at all and others have various problems. On all you have the 8.1 operating system and the 8.0 firmware for that particular phone. That is the way it is. When 8.1 is released to the general public it will have the 8.1 OEM firmware. Till then you can only try to mitigate the symptoms
I dont have battery issues sense turning off Wi-Fi sense but I've been running for the last few days with Cortana off and has made a pretty good improvement in battery life. 8.1 seems to check location a lot more with Cortana. I'd like to see an option to turn off just GPS and just run off of network location.
Yes you are right. I turned location back on and turned off WiFi sense yesterday and not had the massive battery drain issue since. This backs up my theory of traveling/moving around triggers it. I left Cortana on, I'm sure this does reduce battery life a bit over 8.0 but that's to be expected of a new additional feature.