This is what I was gettin at.

I'm not an expert at fuel cells, but I imagine they aren't factory tanks pulled from under a truck and made to look pretty.

I'm sure there are other things done to fuel cells to make them cabin worthy. Making a fuel cell the right way to go about putting fuel inside your truck.

Same concept with battery relocations. Sure, you can strap and duct tape your battery in the back of your truck and run power lines to them...but is the the correct thing to do? No. Fumes from the battery can collect inside the cabin causing problems.

Will strapping the battery down with duct tape and running lines from the front to the back work?

Yep.

Is it right?

Nope.