I'd like to use the batteries we use in FRC, as it could run the project easily, however size doesn't allow.

As far as more info, the globes are direct linked to 3 inch wheels, which will be driving around about 50 pounds of weight. The CIM is chain linked on a 2:1 ratio to a 9 pound steel blade. Is this a little more clear, or am I still confusing something? I really have no idea what to go with...