Step 19: Order batteries. This gets its own step. A lot of the money in this car will be in its batteries. I chose to order directly from CALB (China Aviation Lithium Battery) because they have a presence in California and my friend had met the salesman there a few years ago. They had them in stock stateside and are packaging them up right now! I'm getting 30 of the CA180FI cells. It's going to be a very nice battery.