It has been quite a while since I rebuilt my Rollei 6000 series batteries. One was rebuilt around 2000 and the other around 2005 or so. As you may know the Sanyo Cadnica KR-600AE 2/3A batteries are no longer made, but there are replacements in that size with much higher milliamp rating. I went with these: http://www.batteryspace.com/nimh-rec...compliant.aspxfile-112.jpg