My 2015.5 Vogue TDV6, has a much smaller battery where Smithy shows his 70ah. I am pretty sure my smaller unit is for the stop/start. (you do get used to it and in situations where I don,t want any hesitation I disable it.)
I gave up waiting for anyone to come up with a kit and made my own a year ago. The photos in post one were very helpful, making the rack was a bit fiddly but otherwise fairly straightforward. So far working well. I also connected the existing auxiliary outlet to this battery for permanent power, easily done as mine is on the left side. I always use a separate 2 pin socket for my frig now, after nearly setting fire to a boat years ago relying on a lighter outlet to power a phone charger !
Cheers
Peter

