The LC44 spec sheet is on the web page.  Compare it to the LC50Q.  The only difference I see is the package size and weight.  It interested me as I am a speculator.  Let me suggest that the reason for the package size change may be so it matches the cell size of the cell BMZ is getting from Korea for the StreetScooter delivery van.  That would make using the Litarion cell easier to switch in to the production line.  BMZ would have two suppliers and could control the ratio based on price.  This would put both cell manufacturers in direct competition.