Hello,
I have MUST hbp18-5248 hm 250Ah , https://www.mustess.com/solar-inverter-with-lithium-battery-storage-system-hbp1800-hm-series-2-5-2kw/
I suppose it was not configured correctly before sales.
When it is charging on 98% 245ah charging froze , after time it goes to 100% and error 90...