Got around to fitting solar to the campervan (175W - the most I could fit to the already fairly crowded roof). Was supposed to have been done weeks ago, but the panel was out of stock then work things got in the way. It's always interesting trying to sort out cable routings and work out the idiosyncrasies of the wiring in the van - it's a "proper" one, not a home conversion, but that still means there are some interesting choices made in the design. And routing cables between the roof and the ceiling boards, then down the space between the wall boards (behind fitted units) and the van walls is challenging.
I had to modify the hab module Nordelettronica fuse box/controller to remove the split charge relay, which is soldered onto the board, in order to let the solar controller take command. It'll now top up the leisure battery from the alternator if the vehicle is running, charge the leisure battery from solar or electric hook up, and if the leisure battery is full it'll top up the engine battery. The original setup wouldn't charge the engine battery from anything but the alternator, so if the vehicle wasn't used for a while I'd have to plug in a smart charger to just keep it ticking over.
So that should both make it easier to be off-grid, and mean I don't have to worry about checking that either of the batteries are OK if I've not used it for a while.