Heads up: there's a Qualcomm Quick Charge 2.0 car adapter on Newegg for $3.50 right now. The quick charging works with Samsung's Galaxy S/Note phones, most LG/Xiaomi/Redmi flagships, and a bunch of other devices.
https://www.androidpolice.com/2019/08/19/quick-charge-2-0-car-adapter-deal/