RegGuheert said:From here:QueenBee said:AFAIK there have been no formal releases from Nissan that say either way but the internal murmurs seem to be that there were modifications which are believed to be improvements.That said, I don't believe battery changes always occur at changes in the model year. In other words, I don't think we can say that all MY2013 LEAFs use the same battery chemistry.RegGuheert said:Some notes on the 2013 battery:
- The module case was modifiied to reduce weight and materials used. They claimed a 30 kg weight reduction for the LEAF battery just from that change.
- The changes to the 2013 battery module chemistry were mainly intended to reduce cost. (There has been some mention of improvements in thermal capabilities, but the battery experts did not confirm that. They indicated there may be small changes in battery characteristics, but weight and cost were the two major changes.)
- The 2013 battery modules are compatible with the 2012/2012 LEAFs.
Depending on what one includes in cost that may include reducing warranty claims by decreasing capacity at a lower rate than previous ones but that's just my wishful thinking.