Yes, and there are two very different ways to do it. The difference is roughly six to one.
The slow way: the 12V socket
Every station will take a charge from a cigarette lighter socket with the right cable. The problem is the socket, not the station. Those circuits are usually fused around 10 to 15 amps, so you are moving well under 200W. Over a three hour drive that is a useful top-up on a small unit and close to meaningless on a 2kWh station.
The fast way: a DC-DC alternator charger
This takes power from the alternator through properly sized wiring rather than through a dashboard accessory circuit. Our Jackery unit is rated at 600W and works with 12V and 24V vehicles, feeding a station through its DC8020 input.
Jackery quotes roughly 1kWh for every two hours of driving, and describes it as about six times faster than a cigarette lighter port. In practice a normal travel day puts a meaningful dent in a 2kWh station, which changes how you plan a trip: you stop thinking about conserving and start thinking about where you are driving next.
It protects the starter battery
The part people worry about is flattening the vehicle battery at a rest stop. The Jackery charger uses the ACC signal plus voltage detection to start and stop automatically, so it draws when the engine is running and backs off when it is not. It is rated IP40 and for operation from -4 to 140 F.
Have it installed properly
Jackery recommends professional installation for this unit, and that is the right call. It is a high-current connection to the alternator, and the failure modes for undersized or unfused cable are not subtle. A mobile RV tech or a 12V shop will do it in well under a day.
What it does not replace
An alternator charger fills the station while you move. It does nothing while you sit. If your pattern is to park for four or five days at a time, solar is the other half of the answer and the two work together well.
The other cable worth knowing about
Separately, our 12V Automobile Battery Charging Cable runs the other direction: it uses the station's 12V output to bring a flat lead-acid vehicle battery back up, which Jackery quotes at 15 to 20 minutes for a 40 to 60Ah battery. Useful in a different emergency, and often confused with the alternator charger.