[DonRotolo]

On a budget:

We built a battery charging cart that holds 5 chargers and 10 batteries. It looks a little like the photo, but it is tall and not wide, looking more like a handtruck. Cost was about $40.

We built it out of 3/4" hardwood plywood - a 4 x 4 sheet is plenty - glued and screwed together. The box is about 16" wide, 10 inches deep, and 4 feet tall. The bottom is a piece of aluminum somewhat larger than the box base, for stability. We mounted 8" wheels to it, and a handle - that way, we can wheel it around, full of batteries. The front cover screws on but is not used when we're charging batteries, just for transport. We also have a power strip on back, and some 1.5" holes for the power cords. Each 'shelf' holds 2 batteries and one charger.

If you want me to take a photo or any measurements, let me know.