Hi - I've dallied with this before but in a different way so apologies if you've spotted my previous posts of a similar nature. I'm sure there is a good reason why not, but why don't the 3-way fridges run off the leisure battery instead of only off the 12v when the engine is running? I'm thinking they could run for a short time off the leisure battery when we're parked up for a short while in town or at services or, most conveniently, when on a ferry (as can't use gas then for obvious reasons!). We often forget to switch over when parking up for a little while and this would be so much more convenient (just like the compressor fridge in our previous VW was). Surely the leisure battery could support the fridge for a few hours before needing a recharge?