I was looking at weight reduction options, in addition to the rear seat delete, rear wiper delete, noise maker delete, motor cover delete, hood heat shield delete... and there it was. The 40 pound wonder of a lead acid battery. Without the heavy amp load of a starter, why do we need such a big, heavy low voltage battery? Seems like one of these 3.2 pound lithium ion motorcycle batteries would be perfect. Has anyone tried it? They even have terminal adapters for standard size terminals.