Hi,
I have a MPPT 75/10 Blue Solar which charges a 12V Battery. So far so good. Now I want to feed the BluSolar alternatively by a 48V Battery when there is no Sun. The 48v and 12 V have the same Ground. Is it a Problem when solar Input- and battery output- are the same?
Thanks
Ed
Yes, it is a problem, tmk the current measurement for the mppt function is measured through the negative input. If this is connected to the battery minus it won’t work any more.
I think your better off with a dc to dc converter/charger
1 Like