I installed a Victron 200w Bluesolar panel and a Smartsolar MPPT 100/20 in my Campervan, charging one Victron AGM 110Ah/12V battery (I'm not a heavy consumer on power).
I used the 'Gel victron deep discharge (2)' presetting on the MPPT for this battery. This looked fine to me for my Victron AGM battery specifications.
Until now I was completely dependent on two Victron wallchargers, one 15A used for the AGM battery and a small 4A charger I installed nearby the lead-acid battery of the car.
But now that I am no longer dependent on fixed power and love to stay for weeks at the same location without moving or using the engine, I have to find a way to keep the car battery also fully charged. And this is especially important for the following winter.
Unfortunately, the roof of the campervan is not very large, and together with the 200w panel, roof domes, etc. I see no way to install an extra small solar panel on the roof to topup my car battery.
Another option would be to use my Victron Phoenix inverter and connect the small 4A charger to this inverter outlet to topup the car battery, or is this a stupid idea and not possible
I would appreciate very much your suggestions.