If your primary reason is the convenience of portability so that you can move the battery from the rear to the front..
There is a simpler and lower cost solution, get some extra wire, and fused sockets and install them in the front of the vehicle. That way the battery system can remain stationary. A little labor up front will lead to greater convenience as you don't have to move anything. You can even put some water proof outlets on the exterior of the vehicle but be sure you put a shut off switch for them in the interior.
The bigger advantage of the portable all-in-one units is if you have more than one vehicle or if you also have a house where you might want to bring it inside during a power outage or if you want to take it to an event such as some type of picnic or public event such as a farmer's market, craft fair, etc.
But for portablility inside of a vehicle that is already of limited size then that is more easily solved with a few extra wired outlets.
Think it through, what is it you need, are you in need of a remote location power device or are you just trying to save a few hours of labor because you are afraid of doing some simple wiring?
There is a simpler and lower cost solution, get some extra wire, and fused sockets and install them in the front of the vehicle. That way the battery system can remain stationary. A little labor up front will lead to greater convenience as you don't have to move anything. You can even put some water proof outlets on the exterior of the vehicle but be sure you put a shut off switch for them in the interior.
The bigger advantage of the portable all-in-one units is if you have more than one vehicle or if you also have a house where you might want to bring it inside during a power outage or if you want to take it to an event such as some type of picnic or public event such as a farmer's market, craft fair, etc.
But for portablility inside of a vehicle that is already of limited size then that is more easily solved with a few extra wired outlets.
Think it through, what is it you need, are you in need of a remote location power device or are you just trying to save a few hours of labor because you are afraid of doing some simple wiring?