Moby 40S build.
le partie CDI, I would like to add maybe a 4 cell Ballistic 12V battery or something small enough to fit under the seat post mount to possibly keep some H4 or 9005 shining at a constant rate along with a rear LED (12V 0.8W).
What would be the best low cost option to do this? I'm sure the stock regulator wouldn't work well, so maybe a gy6 rectifier (to keep the LED from blowing) or even the one treats sell would work
Any installation tips?