[Sperkowsky]

We personally built one this year using the second shelf of an old tv cart. It houses not only our robot batteries in an upright position but also holds our power tool batteries. The entire thing costed us $5.00 for some 1x2 wood, and wood glue. The cart was found for free in ours schools basement. The nice thing about it is its a great laptop workstaton and there is extra storage for our drill bit box, drills, and chargers underneath.