Woot offers Otterbox 30W Premium Pro Fast Charge Lightning to USB-C Car Charging Kit for $12.99 (reg. $44.95) free shipping with Prime.

Product Description:
Featuring a compact, durable design, the Premium Pro 30W USB-C car charger powers your devices while you’re on the move. USB-Power Delivery (PD) and Programmable Power Supply (PPS) technology provide the efficient variable voltage charging. And, the kit includes a Lightning to USB-C cable.