Most common failure to the " Motor Appliance " ( MAC ) 48V charger is the circuit board burning out. This is a VERY costly fix, and many will look to replace the whole charger. This auction may be the answer to get you up and running fast ! Unfortunately no returns on this item so be sure of your diagnosis. This price is a bargain as the retail keeps going up ! Don't take my word on it, just check a few sources ! Ships to the lower 48 states. If you're elsewhere let us know and we'll see if we can assist.