Victron 100/20 MPPT almost caused fire. battery terminal gave 80v , same as PV side

[bonti]

Battery Protect is not very helpful. The 12/24V has max. voltage 35V and the 48V only 65V. The BP will disconnect busbar from mppt at 32V treshold (DC voltage exceeds 16V respectively 32V). After disconnection, the input of BP will rise to the voltage of PV panel (80V in my case) so the internal mosfet of BP will be exposed at high voltage, with unknown consequences. So , definitely NO for BP solution, maybe usable if panels are in parallel (bad idea, waste of cables, Y splitter) . And definitely not for 150 and 250 mppt series…