How Many Watts Do You Actually Need?

A 20W PD adapter is enough for most phones and will charge faster than old 5W bricks. 65W GaN makes sense if you also charge a tablet or a light laptop from the same plug. Car chargers should have two ports if two people ride together. More watts will not harm a phone that negotiates Power Delivery — the device only draws what it needs. Match the cable too: a thin no-name cable can bottleneck a good adapter.