On our Voodoo Vintage bobber, my buddy and I have decided to go with an Antigravity battery.
If you haven't seen them yet - you have to check them out!
http://shop.antigravitybatteries.com/videos/#starting-demo-xp-1(I am not paid to endorse Antigravity)
Unbelievably light, unbelievably powerful!
It's so tiny, we're going to be able to keep it out of plain sight!
One drawback however, the stock regulator/rectifier will not work. Rick's Motorsports has a special Li version.
I'm curious if anyone on here has ever used these batteries before?
Lemme know.