in theory, once the cell is made, its 'life journey' begins. If new (or nearly new) cars show two and only two capacity values (assuming the measurements are reliable), that's quite possible they are made from two different batch of cells.
Although we all see some variation of capacity measurements in different temp./charging situations, but those differences wont be so significant, and this gap on the other hand, fits in battery life span curve quite well.
We all know Nissan has much higher expectation for 2012 sales which fell short. It wont surprise me that cells manufacturing goes ahead and have to wait for the actual car sales to catch up.
We probably could know better when later time, more new cars roll out.
chrisie75 wrote:There might be another possibility, the date that car is assembled is different from the date the battery pack is manufactured.
That's a wild guess. Some 2013 cars might be using battery packs actually made for previous year's? since 60-62Ahr is quite close to that...
Well, I had thought that the 2013 Leafs were made in Smyrna from May on and in Japan before that. Also I read somewhere that the main battery "stuff" still comes in sheets from Japan, and the batteries are assembled from those sheets in Smyra.