Review on 🔌 iWonbrey USB-C Car Charger - Fast PD & Quick Charge Dual Port Adapter - Compatible with iPhone 12/12 Pro/Max/12 Mini/11/Pro/Max/XR/XS/Max/8 and Samsung Galaxy S21/20/Note 20 Ultra by Orlando Mohr

I've now tried 3 different car chargers for our S21+ and S21 Ultra. a few years and I know it works). "Fast Charge" appears for a few seconds before only "normal" charging occurs - a Choetech USB PD 3.0 car charger behaved the same way - and this one actually listing the S21 Ultra for fast charging. Still works the same as we have tried several USB-C to USB-C cables including OEM and we have a newer Honda Accord. I don't know if it's car related or just "our car" but I assume fast charging from a car is not possible with a Samsung S21. The blue LED is too bright for night driving, so good.