Thanks for the replies, the current Clifford I have no problems with although it is heavy on juice, for example I haven't used the car for a couple of weeks and already my battery's down to 11.45V maybe it is just faulty, I do know it's this draining it. Mine to has window closure etc, it's a G4 type. I have always heard that Clifford's draw a lot of power as well.
I have had a new siren on a little while ago so know the battery is fine as on my model it's a common failure!
Martin