Yes, I also mentioned they were deep-cycle in the first post. They are actually too big for this application. Even though they're heavy, its plenty fast, but we could save more weight and space with a smaller set of batteries. Driving hard for almost an hour only took them down to 80%, even with the regeneration disabled. Perhaps next fall we'll get smaller ones for this kart and create a larger more powerful "version 2" that uses the current batteries.

There are a lot of things to cut out or skimp on that could make this cheaper, mostly in the fancy electronics and the somewhat expensive metal fabrication costs. The expensive parts are the motor and PWM controller.

More vids later this week.