Dual Batteries or one single

[the evil twin]

apologies for hijacking the thread.. but what do the experts think of this ? Ark Pak

We go camping for like 3 days every two to three months. So dont wanna lug a battery in the Patrol all the time.

There are quite a few variations of that theme around but that is the first time I've seen that particular one.

Given your useage pattern then it will be fine and no better or worse than a hard wired installation
Essentially it will be as good as the Battery you put in it and they have gone for versatility with connectors etc so ticks a lot of boxes I spose.

Cost might be a bit of an eye opener