Great question to ask us! Charging speeds have come along way since the 4 hour 5w charging days right, lol? I personally use 25w or 45w Super Fast Charging during the daytime. When charging overnight I turn my device off and put it on my 9w Samsung wireless charging pad. I feel this gives my device a good mix of charging speeds and giving the battery a cooldown period overnight.
Has anyone managed to get "Fast" charging from a non-Samsung charger? The cable does not need to be a Samsung cable, but I notice those non-Samsung cables over 3 feet often will not do "Fast" charging.