This high quality charger is back on sale again, cheaper than the recent deal. Limited time deal so not sure when it will end.
Festure:
Small Yet Powerful: By swapping out silicon for Gallium Nitride (GaN) we've been able to fit 30W of power into a charger that's just 1.12 inches thick, and 70% smaller than an original 30W charger.
Anker is selling it with an auto-applied coupon for $29.99 with free delivery. Works out cheaper for those who don't have Prime (or do not wish to shop at Amazon)