I have always been disappointed in the battery life of my 6P - after 15 months of a OnePlus One and its GOAT battery life, who wouldn't? - but I am at my wit's end over how abysmal my battery life is. Seeing people bragging about 5+ hours of SOT makes it even worse as I could get that with my OPO, but no way in hell with the 6P.
Currently I have been off the charger for 14h with only 32m of SOT and I'm down to 49% battery. Because I have Project Fi, I am trying to minimize the cell standby drain my Faraday cage-like workplace causes by running in Airplane Mode with wifi turned on; I have removed the Facebook app (can't ditch Messenger, though, and in beta group for that) and GasBuddy (which caused drain due to Bluetooth bug) and the damn thing ONLY Dozes when at home or at my g/f's while sleeping.
Here at work, sitting on my desk motionless (i.e. not in my pocket being shaken) makes no difference. According to GSam Battery Monitor, Google Services has guzzled 4.5% and Google Apps 3.5%. These two are ALWAYS the top two on the App Sucker list. CPU Spy Plus routinely shows it only goes to Deep Sleep 50-60% of the time.
Android Battery page lists power usage: Screen 3%, Android OS 3%, Android System 2%, Phone Idle 2%, Google Services 2%, Wi-Fi 1%, Google App 1%, before finally having Chrome 1% and Cell Standby 1%.
I was so used to only having to plug in the OPO because it'd been a day or two; now I have to pretty much plug it in all the time and if I actually get nearly two hours of SOT, it's a freaking miracle. So frustrating to pay so much for a phone and get terrible battery life when so many others care claiming so much more.