2 MP II single phase parallel offgrid

Hello,

I just added a second MPII to my existing one in my offgrid system. Old one was HQ2237JXDAT. New one with HQ2301G77XT. PN identical.

Now I noticed that the Slave ( new one ) tooks about 8-9% more current on DC than the old one. Cables DC and AC are excactly equal in diameter and lenght.

Is this acceptable?

Greetings

Dirk

Can you live with it?
It means that one will overload before the other near max load.
If not, you can kind of tune the system more by changing length of ac cable a bit between units.

“a bit” is not enough, I guess. I doubled the lenght of one but the effect was zero!

Greetings Dirk