I am using the controller with one 12V panel and several 12V batteries. The batteries are all solar system or camper dedicated lead-acid batteries, but they are different ages, makes and capacities so I can not connect them at the same time (right?). So I connect one, when it is full, disconnect it and connect the other - and so on. Can I do this and still benefit from the battery charging profile learning capabilities of the controller? Or can I save a profile for each battery and switch them manually? Do I need to do either?