[raymo]

They come with adaptors for both types of SW focusers.
Joe, there were quite a few of us early buyers of this electric focuser
that had this problem, a new battery would be dead within 12-24hrs.
As I have stated before, I have no idea whether this problem was ever
rectified. Mine is still the same if I forget to switch it off; luckily I now
use a rechargable battery. Yes, not much point in switch if focuser is o.k.

Mine is Crayford style, but I wouldn't be without my electric focuser.
You can override the electric focuser for very large focal adjustments by simply
pushing or pulling the focuser to an approximate focal position, and doing the final
adjustments electrically. Can't do that with r&p focuser of course.
raymo