I hope this isn't the start of a bad trend -- I couldn't even get through a full day with normal use after the update versus previously on nougat with no habit pattern changes -- nothing, not even 8pm and I'm down to 14%...... Anyone else?
WeirdMight be something up. I was just coming on to say the opposite, my battery is lasting much longer, freakishly longer than what it was before.
It has been almost a year now with my S8+.. I used to be able to get through the day before it dies. Now I have to charge it by 5 or 6 pm or won't make it through the day. Hopefully, Oreo gives better battery life but I doubt it. I'm on AT&T, so I haven't received Oreo update yet.
Maybe battery life is decreased on Oreo because of more putzing around with the phone on it? :-!