The Lead Acid Battery in my H-D '09 FXDF is rated 12V at 19Ah. If I understand the math correctly, I would need a 12V capacitor rated to 5,700F. Is this accurate? 1 F = 1 As/V 1 Ah = 3600 As 19Ah x (3600As/1Ah) = 68,400As (68,400As/12V) x (1F/[1As/V]) = 5,700 F As I understand it, traditional capacitors are unable to deliver a consistent voltage as it's discharged or used. Is this also true of Supercapacitors? If my math is correct, this would seem like a futile endeavor considering the necessary capacitance and associated cost over traditional 12V 19Ah Lead Acid Battery. Thanks!