Many thanks for the replies. The are a number of points made that I had not considered or been aware of and this gives me food for thought.
Bob.

I carry a Stop Lock in the pizza slot of the Roadster. I haven't used it for twenty years or so but put it on yesterday and thought that a thief would have to be very serious and need a lot of time to remove it.

Pizza slot ?

This BEP marine battery isolator is of better quality than the cheapo T key car type, with a higher current rating and self cleaning contact action. I had three including the heavy duty version fitted to my last boat. The key which is very much less common can be removed after use.

Richard, many thanks for this post.
I have used two "Discarnect"s with varying degrees of (un)reliability, but I'd never come across the BEP.
Cheers.

Thanks Richard, I’ve ordered the panel mounted version.
Bob.

John
re: pizza slot. Very useful and in addition to fast food, carries all my other bits and pieces. You know, all those things that you never ever need until you leave them at home.

I like Dirks solution to security, remove the drivers seat !!!!!

David Byrne

I had an isolator switch on my 4/4 when I bought it. Enough of a voltage drop across it to affect starting. So make sure the one you use is good quality.

I 've got the idea from Mr Bean but I wouldn't copy him!