Source: http://tsun2.bbs.coocan.jp/?m=listtop&p=2(in Japanese)Remarks: The new design is used for the K-01, K-30 and the new Silver Edition of the K-5. All older K-5 used the old design. It is also told that the newer 645D units are modified to adopt the new battery as well (and shipped with the new batteries with the new chargers).The difference is the additional "D" contact, which appears in
