My motorhome got a starter battery and a leisure batteri,
with a common negative. And for that reason a non-isolated DC DC charger would be my first choise.
How ever; I can not see any reason I should not use a isolated DC DC Charger.
Something I dont get?
Yes, if my two batteries was totally separated both in positiv and negative side,
I would not mix them two. For sure.
But for the typical motorhome i does not matter. Or?
Anyone?