The better way to ask this question, might be "Tell me what brands of batteries are you currently using in your boats that you oval race with". Pretty crisp way to get away from a technical discussion and best prices conversations and see what people are using to try and win races.
By the way, I am more "chatty" today because I am currently over Arizona in a plane flying back to Houston. WiFi on a plane is great. The good news is the cell phone still does not work on a plane yet.