After setting 3G only, I have the phone unplugged for the last 22 hours with 1 SOT and 1 Antutu benchmark run (which took few percents off the battery) and I'm at 70%. Edge browser also says it worked in the background despite setting it to deep sleep. Removing it would probably yield even better battery life, I have to find a better browser. To be honest I didn't get battery life this good before the update. That LTE module sure is energy hungry, even before the update screwed it up.