MPPT leaves absorbtion with 30 Amps. Acctually, there are 2 MPPTs, each at apeox 30 Amps which means at 60 amps still absorbing. BMV does't synch, because max SOC keeps around 85% end there's plenty of sunshine.

Why that happens?

Battery bank is 1000 Ah at 48V, lead GEL chemistry.

MPPTs are 2x BlueSolar Charger MPPT 150/60 in parallel.

There are 3 x MultiPlus 48-5000 in patallel.

BMV is BMV-600S.