Sorry, I am too late, I know.
If a BMS claims to survive a short circuit, it should survive. Thats what I tested. Just doing a shortcircuit on the load side. The result was: Most of the FET's on the load-side on the board were blown.
Additionally, because of the bad layout and design of all...
123BMS
4s
depends on relais only
~350$
Satisfied
123electric
Some 'strange' settings and balancing mode, but after some mods ok, up to now... Has limitations with thicker cables for ~>150A.