In my research on expanding my power generation, I came across the BYD B-Box, currently available for $1500 for a 2.5kwh unit, expandable to 10kwh (4 units in parallel).
These are LiFePO4 cells, and I was talking to the supplier of my LiFeTech cells who informed me that these type of LiFePO4 cells are rubbish, and not even close in quality to the cells he supplies (of course he has a vested interest)
It begs the question though, are all LiFePO4 cells created equal? If not, what exactly makes a cell a good one? Obviously I don't mind paying double for a cell that will last 3 times as long, but will it?
In any case, I think the BYD looks a more appealing option than the LGResu, simply because of the lower volatility chemistry. It is plug and play compatible with SMA / Victron inverters (and others).
Does anyone have any info on either the BYD, or what exactly I should be looking for in a LiFePO4 cell?