Battery Carts/Shelves

[TedG]

I don't have a picture of the final project, but we built one for last year's competitons based on similar size constraints and info from here.
Ours is 24"x24"x36" when closed, it folds in half and locks together making a rolling box for travelling; each half is 12"x24"x36" with piano hinge, locking clasps, collapsable handles and caster wheels. It holds 8 batteries standing on edge in slots on the bottom with battery chargers on a shelf above (4 at the bottom of each half). A shelf above for some parts, controllers, etc. Complete with wired power strips so all we have to do is "plug it in" and its going.

The attached image is our "rough draft" before we built it, which doesn't show how we actually built the battery slots and shelves, but you get the idea of folding within itself and locking. One thing we learned, get big enough diameter caster wheels to handle rolling on pavement etc, not all surfaces are smooth floors.