I have a Traxxas Stampede that I bought for my mini me for x-mas. I wanted to go lithium. The gentlemen I worked with was highly knowledgeable and explained the detailed charger components that could potentially break everything if used incorrectly. He saved my settings on the charger and made sure I knew what I was doing before I left. Awesome shop, awesome people. Definitely going to go back for all my hobby stuff. Kudo's!!!!