The portable power station and accessories best suited for you are
Various Scenarios, Simplified Use
DJI Power 1000
DJI Power 1000 has dual USB-A ports, dual AC output ports, one SDC port, one SDC Lite port, and two 1/4″ thread holes. It is highly versatile to make power usage in various scenarios more convenient. It can connect to different types of solar panels, power cables, and adapter cables, meeting the needs of a variety of power supply and recharging options.
From AUD $999
Charging Car-powered Devices
DJI Power Car Power Outlet to SDC Power Cable (12V/24V)
Using this cable, DJI Power series products can charge car-powered devices, such as a car refrigerator, with a car charger plug.
AUD $89