I'm kind of giving up on my Note4 because of the battery life. I've bought 3 batteries over the 3.5 years I've had the phone. I have a Samsung charger that sometimes doesn't even work. I can put the battery in the charger and sometimes it doesn't charge - I've checked its plugged in well.
I am looking to buy a new phone and as we all know its pretty hard to find something with replaceable batteries. I am resolved to get something without that. I don't need the stylus and all the phones I am looking at from $200 on up seem to be about the size of the Note4 or bigger so I will at least have that large screen experience. For battery life I'll simply carry in my travel pack or pocket an extra little battery to plug in when needed and I'll be fine.
As I leave Note4 I am wondering what happened. I don't think it was that the batteries wore out and couldn't hold the charge. I think it was that the OS upgrades from Android/Samsung/ATT started to use more power to do new things and the management of apps and the apps themselves started using more functions, depending more on location services and wifi and what worked back in 2015 efficiently doesn't work as well in 2018 on a phone designed in 2015, and Samsung has no incentive to fix that.
Does that make sense?