Someone asked "how could I protect the alternator from being fried if the bms shut down your lfp house bank".
Firstly; my house bank has three lfp banks in parallel. Each has its own bms. If one shuts down the other two pick up the load, and if two are shut down the third is still there.
Secondly; the reason a bms shuts down a battery is typically because the battery is full or empty. While the alternator is charging, the bms will never see an empty state, and if the battery is approaching full, the charge acceptance of the battery is very low. So if the bms disconnects the battery, the low current produced by the alternator will unlikely be strong enough to damage the alternator diodes.
Thirdly; Balmar now sells a diode protection gizmo that I have installed as a last line of defense. Balmar APM-12 Alternator Protection Module for 12 volt systems
Firstly; my house bank has three lfp banks in parallel. Each has its own bms. If one shuts down the other two pick up the load, and if two are shut down the third is still there.
Secondly; the reason a bms shuts down a battery is typically because the battery is full or empty. While the alternator is charging, the bms will never see an empty state, and if the battery is approaching full, the charge acceptance of the battery is very low. So if the bms disconnects the battery, the low current produced by the alternator will unlikely be strong enough to damage the alternator diodes.
Thirdly; Balmar now sells a diode protection gizmo that I have installed as a last line of defense. Balmar APM-12 Alternator Protection Module for 12 volt systems