I'm on Verizon and I definitely have the issue. Standby was at 36% with the screen and system both at 15%... After playing around I did find one "solution". Turning on airplane mode stops Cell Standby usage completely. Wifi has nothing to do with it. Obviously this isn't much of a solution, turning off the cell phone functions of your cell phone..
![Screenshot_2015-04-11-19-19-52[1].jpg Screenshot_2015-04-11-19-19-52[1].jpg](https://androidcentral-data.community.forum/attachments/112/112937-3032a6c97929bc3eb838f5e4660344bf.jpg?hash=MDKmyXkpvD)







