I just bought a phone power bank (external charger) with built-in USB charger cords which has instructions to pick the match for your phone's charging need, either USB C1 or USB C2. I can't tell which is right for my Samsung S20.
A (non Samsung) specifications page I found for the phone states the USB is "USB Type-C 3.2, OTG" That doesn't comment on the "C1" or "C2" thing.
I don't know if there's any risk to the phone from using too powerful a charger port.
I do hope that the "battery protection" I'm supposed to be getting by only letting the phone charge to 85% instead of 100% is actually going to buy me some battery and phone life. I got the phone in July, 2022, not in 2020. I've been sticking to that charging restriction but I noticed since I got a new app for my hearing aids the battery seems to be draining faster. 85% charge isn't always enough to get to day's end.
