I ordered a set of NiMH batteries to rebuild one of my packs, 6000 series. They included an image of the pack with the connectors ID. They are as follows, for those who might want to know. O O O O O O + - - + slow fast I used the fast configuration with the MH-C777PLUS charger. Previously I used the slow charge connectors. It seems that the batteries prefer the fast. The NiMH on the other hand will overheat on the MAHA, if left unattended. They do charge as intended on the Rollei charger. Best, S.d.--- Rollei List - Post to rollei_list@xxxxxxxxxxxxx - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe' in the subject field OR by logging into www.freelists.org - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with 'unsubscribe' in the subject field OR by logging into www.freelists.org - Online, searchable archives are available at //www.freelists.org/archives/rollei_list