There is too much difference in voltage between the received batteries. The battery often gives an error. The manufacturer of the cells is not the same as stated by the seller. When carrying the battery, the screen cracked, the seller did not help with replacement, as if he did not even know which product he shipped to me. Also included with the 280Ah battery is a 4AWG wire, which is unacceptable, as it gets hot. This was confirmed by a company engineer via video link. The seller refuses to resolve issues 

the inverters from this consignment was not functioning.