I will venture a WAG here and posit that the differences between these various manufacturers offerings has less to do with the chemical composition differences of the LiFePo4 cells (which this has been roughly standardized) and lots more to do with the various proprietary strategies designed into their BMS system, thereby narrowing the breadth of discharge (maximum available amps) to prevent (or greatly reduce the possibility of) the formation of damaging dendrite formation and to extend longevity…
This should be of concern to all manufacturers, so my guess is that Expion has merely chosen a more conservative parameter.
On Dendrites:
Phil
