Sigma Japan has posted a recall notice for the 'battery case' (the cartridge which slides into the base of the camera) for cameras with a serial number between 1000251 and 1000459. This is to correct a fault where the amount of remaining power is incorrectly reported when using NiMH batteries, this problem does not occur with Lithium CR-V3 type batteries. The notice states that only the battery case need be returned and new cases will be supplied in return. It's not clear yet if this range of serial numbers affects any cameras outside of Japan.

Click here for the Sigma Japan SD9 Battery Case recall notice (Japanese)