I picked up an initial release Turbo, and while the battery was good, it wasn't as good as my previous year Droid Maxx, even with the larger battery. I'm thinking it's due to the higher screen resolution and we'd be seeing longer battery life had they gone with 1080 vs 2k resolution (the Maxx only had 720p resolution). Another possible cause may be LP, but i was seeing issues before that showed up.
The reason I am posting is my earpiece went out about a month ago, so I was issued a refurb replacement. The manufacture date was July 2015. I did the LP update before I installed any apps, and did a FDR after the update. Anymore, I cannot get more than a day out of it. Right now the phone has been off the charger since 8:30am this morning, so 16½ hours. My remaining battery percentage is 36% with around 2½ hours SOT. The problem is, after it gets down below 40%, it nosedives pretty rapidly. There are no apps that are dragging it down, and since at my house the signal isn't very good, we have Network Extenders to compensate, so my signal is around -75-80dBm, so signal isn't the issue. My screen brightness is set at around 25-35% with adaptive brightness on. I keep WiFi and mobile data on, GPS set to high accuracy, and Bluetooth and NFC are turned off. These are also the same settings I had on my Droid Maxx.
It seems to me that a phone with a battery this size should be doing much better than it is, when like I said earlier, my Maxx with a smaller battery used to net me a day and a half before I dropped below 40% and put it back on the charger. I really like my Turbo, but one of the key features, battery life, IMHO isn't much better than phones with a battery just over half it's size. It amazes me how some people are getting 6 hours + screen time. At my best I might have gotten around 4½ hours SOT, where I could get that regularly (and a bit better) with my Maxx. I don't know if it's the screen resolution, LP, or a combination of the two. But if this is how it's going to be from now on, then these OEMS need to rethink these screen resolutions that IMO are overkill. I don't even want to think what that Sony phone with 4k resolution gets for battery life. Sorry but I'm a bit frustrated by how much the battery life has suffered going from the Maxx to the Turbo.