mpvader
commented
6 days ago Hi, thanks. what we’ve seen on systems with both a canbus connected battery as well as a smartshunt or BMV is that it confuses the user.
deviating soc, questions, wrong settings.
so I’m not that enthusiastic about such set ups.
I’ll consider this idea the coming time, bit already know that of we’ll do this, it will take quite some time before we get around to it.
Thus, if you want this soon for your own system then I suggest you modify it.
On supported batteries with inbuilt BMS driven isolation the SVS function in DVCC must not use the BMS battery voltage in case it disconnects. The current solution is to force SVS off in these cases. However, some installs will still have a shunt or other Victron device that could be used as a source for SVS. Forcing SVS off means that the system can no longer benefit from a single voltage used by all devices that compensates for voltage drop. I suggest that for supported batteries like this, SVS is turned off, but the user can turn it back on BUT importantly, can only choose a Victron devoce as the voltage source, i.e. the managed battery is not allowed. You could go further in the restrictions and just allow a shunt to be used as the source.