I took my busted night light battery apart and found that the positive and negative leads were broken and shorted. I cut the wire and re soldered them together. Recharged it last night and all is good. I also took an older 15W halogen Ni-Cad battery pack to Batteries Plus. They are going to rebuild it for $30 and rebuild it with higher capacity batteries. I should be able to run both 15W lights and be all good for DH night riding. Its good to fight and win the urge to spend $400+ on a new light system. On a side note: NiteRider wanted $150 for a new battery pack. I need to save the cash for: a clutch for the truck, generator for the toy hauler, brake job for the truck, and of course some new bike parts.