+1 for the Anderson.
I have two batteries in the truck bed and connect them with Anderson. I have big ones.
I ran through the wall with bolts that carry the current instead of fishing in wire…
Keep in mind these shown above require to be soldered in, but are very good DC plugs.
I have heavy cables and just set up camper so cables are a sideways U shape and same on battery side, so when loading/unloading I can move truck a few feet and not harm the cables or pull them.
I get TC about 2 feet from cab, then plug/unplug them and all is good. The rest of the magic happens inside.
