My S7 doesn't get plugged in that often, it has great battery life and sits on a wireless charger most of the time it isn't in my hand.
Honestly I was one who hated sealed batteries, but I also haven't found a need for a spare battery since 2012 with my Note 2. Once I got my Note 4 it had good enough battery life combined with fast charge I typically only charged it in the morning while I got ready for work. It's been 5 years since I had a phone that didn't last my work day, otherwise I do have an outlet and charger near me almost 24/7 anyway.