Attached is a graph which shows motor amperage and battery amperage for a hard run around the block. Although the battery amperage peaks around 500 amps (although the controller reports battery voltage for some reason), the average battery amperage is about 100 amps which means if I'm on it hard non-stop it will last around 20 minutes but my real world tests allow me to run it for about 45 minutes and still have a little left.
There were some lessons learned along the way that I would like to share with this build. First, there is a reason you do not see many solid axle electric karts with 45lb batteries hanging off the back. That is because as everyone already knows solid axles dont like to steer on hard surfaces as it is then once you add weight on the rear it makes it even harder. To steer on the asphalt I must brake hard and steer at the same time which means you must carry a lot of speed through corners and come hard on the brakes to get it to steer. In the dirt its a different story naturally and its a beast. Power delivery is instantaneous and its a lot of fun in the dirt. Problem is this racing kart is so low even though I put the largest rain tires on the front and rear the bottom is dragging and the fiberglass seat is getting destroyed. So larger tires are in order.
