Can a BMV-712 be fitted with 2 head units. I want to achieve 2 levels of SOC alarms.
No, that’s not possible. What -or why, really- are you trying to accomplish? There may be a different way to go about it, like an SOC alarm from the BMV followed by a low-voltage alarm from a Smart BatteryProtect or something like that.
Want to allow or deactivate 2 levels of discretionary loads. Lithium voltage curve is too flat to do it with voltage.