I have two systems based by Multiplus 24V 3000W, one with MPPT 150/70 - 2 x 12V/250A Ultracell, 6 x 395W Trina PV, other one with MPPT 150/85-Tr - 2 x 12V/220A Victron AGM, 6 x 405W Trina PV. These are separate systems, no parallel connection, feeding different consumers.
On the 150/70 version I discover that the system put the batteries in idle at 85% and feed the system from the grid, the 150/85 goes to 50% discharge. I compared the two VE Configure files and the setting seems to be almost identically (the difference is the batteries capacity). What I' am doing wrong with the 150/70? Many thanks for your help.