revision n

I was browsing through the catalogue to see any evidence of a new battery for the Model 3 and I found this 1137375-01-N ASY,HVBAT,75kWh,AWD-RWD,1PH,M3,REMANUFACTURED This is clearly after J from last year, at least 4 itterations after 1137375-01-J I tried googling the- N part, but I only found...