Lol, I kid. The hub generators only produce 3w? Is that enough to see where you're going? I'm looking to put a 10w/10w or a 10w/15w mr11's @ 12v. With a 13.2v 10Ah, Nimh pack I can get around 5 hours runtime with both on.

Darkmother: when you said smart charger, did you mean the ones with battery sensing/complete shutoff, temperature based turn off or set charge time/trickle?

Man where are the speciality battery stores when you need them.

Edit: This is a halogen setup.