I got a bunch of lithium a little while back for a Cadillac that I am converting right now, and I went ahead and picked up 45 more of the 100 AH batteries for this rig. It is pretty fun with the light weight and all that tire roasting power, But I want to add a little more range. I get about 55 miles range out of these 45 batteries, so the second pack should put me right around the 100 mile range.