BATTERY ASSEMBLY AND METHOD

A battery assembly for circulation of an electrolyte composition comprises a jar body having an upper and a lower end and a floor at the lower end, one or more sidewalls presenting an interior and an exterior surface, and a jar cover. The jar body defines an interior cavity disposed about a vertical axis. The battery assembly comprises two or more ports including a first port and a second port. The battery assembly also comprises one or more valve assemblies. The electrolyte composition is evacuated from the interior cavity through the first port or the second port and is replaced with additional electrolyte composition through the other port to create an electrolyte composition flow pattern within the interior cavity between the lower end and the upper end of the battery assembly.