My two MY2000 DSE have, and my MY99 HSE had, batteryclamps that would not fit strongly to the poles.
the clamps are tightened by a nut with a conical inside, the clamp had at the outer side a bolt with two half cones surrounding it, on this bolt the nut with the conical inside is fitted and if all worked as it should... the nut would pull both ends of the clamp together while pressing its conical inside over the two half cones, forcing them towards eachother....
Sounds nice, looks nice, and probably worked nice too.... for a while.... but on all three of mine the nut is tightened fully, but the clamp can still be taken off the pole....
so... either the cone is worn, or the nut.. or both.... Is there any solution other than fit other clamps..... these are fitted nicely to the batteryleads..... would hate to fit such a stupid one which clamps the cable by screwing two bolts tight over a strip of metal