ezgo electric wont move

[mascon]

I have a 36v electric ezgo. I think it is a txt. Problem is it has been sitting for around a year and I just put in new batteries but it quit moving. Last year the batteries started getting weak and not holding a charge for very long at all so I parked it. This year I just bought new batteries and put them in. It worked at first but didn't have the same power as when I first purchased it a couple years ago. It has a high tourque motor on that was installed before I got it and it use to go great but now even with new batts. it will barely pull a hill and after around 30 minutes of use has quit working at all. It quit a couple times but then I let it sit for a while and it moved again but nothing now. When I press the petal the solenoid engages or clicks but no movement. I am getting 37 volts to the solenoid and on the other side of the solenoid. I'm also getting 37 volts to the controller. Also were I bought this used and it was alredy set up with a higher torque motor and I think a different controller the wires have been altered. There is an orange wire coming out of the controller but its not hooked to anything. There is also a red and white wire coming from the charger recepticle that is not hooked up. Anybody know what to do?