We have taken our rig to storage. Both batteries have been removed. Question is, If we plug the rig into our truck will the slides work? Or do we need the batteries in it...
In theory, yes they will extend and retract. I have done it many times with mine, but my TT, has a small light slide. It goes in and out at its normal speed.
If it is a big heavy slide, I would expect it might be slower than usual, as the 7 pin does not provide a lot of current.