If it's DCC-equipped, to convert it to battery power, you need only add batteries and something like Airwire's "Convertr" or Tam Valley Depot's "DRS1 Hi-Power" receiver. Both work with Airwire's transmitters. You would hook the battery to the Convertr or Tam Valley receiver, then attach the output of the to the track inputs on the Shay. There's ample room in the tender over the third truck for batteries.
Later,
K
Later,
K