Purchased 2 used batteries from ebay for £4.99. One battery was discharged but the the other had enough charge for a test.

It works!!!

....in a straight line, Turret also works.

On inspection the clutches are seized. I have manage to free them but one seems to drag.

I need to charge the battery and retest but I have no charger.

Will a 9v charger work for now?

Mike