It's about time to circle back. When I first updated the battery life was about 4 hours. I performed a FDR. This imporved things. Not right away but it gradually got better. It has yet to reach the level of battery conservation it had prior to the update. As it exists now, I have to be sure that I have a means of chrging it throughout the day...either at my desk at work with a wall charger or with a mobile battery such as one of the Anker units. Still periodically the phone goes into what I call a "battery free-fall" where the battery drops precipitously at a rate of losing about 1-3% per minute. The only fix for that seems to be to shut the phone down completely and then power it back up. Seems to interrupt whatever is pounding on the battery. Another strange thing is that often, a 2 amp charger cannot overcome just using the phone. For example, I have a video podcast playing, lo-res, screen brightness around 50%, and the phone plugged in to a 2.1 amp wall charger. The phone is LOSING battery...not fast, but it IS losing, not gaining as one would expect with a 2.1 amp charger. If anyone has a fix for this I'm all ears...and before you post, yes, my screen brightness is turned down, notification in apps are dialed back to almost nothing, app updates are at a minimum rate per time period. The only thing could be that the callular signal is crap in my office...it wasn't always. All I could ever get was 3G but that's due to a 3G repeater in the basement here at the hospital. In short, I like the way Lollipop looks and acts, with the exception of it's craptastic battery performance. I really want my battery life back...hauling around a battery pack sucks.