I recently had my 2001 GTX Ltd di worked on and it ran fine for about an hour until the battery went dead... while riding! Towed back to dock. While hooking to battery charger, I found positive and negative battery clamps on black wires with small plug connectors on ends just laying loose next to the electrical box and when I picked them up, they were connected to nothing. One mechanic has said the ski has onboard battery charger and they should be connected to it and another mechanic says it doesn't have one. Where do these go? Is that why it went dead? Can someone please help me?