Batteries in Storage.

Assuming you only have things like alarms and trackers running, the solar panel will keep your habitation batteries topped up. The engine battery can be either similarly maintained by the solar panel if the controller is a dual battery type or possibly by a 'battery master' which tops up the engine battery from the others on an 'as required basis' based on voltage differential. It is also possible that there is no supply to the engine battery, in which case it'll probably need a bit of a boost on a monthly basis.

You need to check these things out with the dealer when picking up the van.

I was about to reply to this yesterday, when I noticed that it was almost two months old and GL would have gone elsewhere for information. Why did it suddenly appear at the top of the list, where has it been since  November. The mysteries of CT.🤔

Yes, a bit odd to surface now, did exactly the same thing.

I hadn't noticed the date. Interestingly he posted in another thread about the same time which appears to have uploaded successfully. Perhaps it was as a newbie starting a new thread that proved too much for CAMC IT.