[aidenn0]

Here's one:

Rather than brick the battery, if it is parked and below a certain level, release a normally open relay that completely disconnects the BMS from the cells. Recovering from this state would require special charging and recalibrating of the BMS (possibly done at a shop) but it would be better than bricking the pack.

[nknight]

Disconnecting the BMS does not eliminate self-discharge, only the parasitic load. Draining your batteries to the point of being functionally dead, and then leaving them in that state for an extended period, will still "brick" them just as badly.