With a Samsung Galaxy S20 charger, you can charge your smartphone fast. Use a 25W fast charger from Samsung to charge your S20, S20 Plus, or S20 Ultra at maximum speed. Your battery will be 55% full after just half an hour. Your smartphone comes with a USB-C to USB-C fast charging cable. You need this to use the charger. All other fast chargers are a bit slower. After half an hour of charging, your empty battery is 40% full. That's still faster than a normal charger. With that, you get just 25% in half an hour. Choose a charger with multiple ports if you want to charge your earbuds or smartwatch at the same time.