I had the same thing on my note 8. Battery was great for 3 years but thereafter started loosing charge faster and faster. Unfortunately it's a fact: these batteries only have a certain no of charging cycles. Over time the battery looses its ability t...
Yeah thats because essentially your phone has switched off the cellular electronics and disconnected from the nearest cell tower and is instead utilizing the wifi router in your home or work or free WiFi at a restaurant etc. It's a real handy feature...
I also love the Note series phones and have been buying Samsung Note cells for years! Note 20 ultra is an awesome incredible phone!! Fablets are the way of the future. The stylus (s pen) is incredible. Jot down some notes, do some drawing, use Micros...