YES?
https://shop.yuneec.com/eu/accessories/breeze/breeze-4k-car-charger/
An inverter is inefficient which can be an issue. and its another thing to carry around.
This part: Amazon.com: Yuneec USA SC35003 3S 11.1V 3.5A DC LiPo Balancing Charger, YUNSC35003: Toys & Games
almost does the job...