Hi
I have started to experience the same problem with my 8.8kw BSL battery paired with a 8kw Sunsynk inverter. The battery just drops to zero after passing 25% even though the shutdown is set at 10%. Today it dropped to zero after passing 32%.
I contacted my installer after the previous times that it occurred. They did a firmware update but to no avail. What can I do to get this resolved.