The new factory made charger, the D type, seems to be working well and I'm told by technician Dave Feely at Key Camera Service, that in his testing the NiMH celled batteries are getting fully charged in less time with less heat. Less heat means longer life.
While the factory is supplying me with new chargers, they've not had any new 6000 batteries available for months. I'm in need of dead or old 6000 battery cores for rebuilding. If you have any just laying around, I'd be happy to buy them from you at $25 each so I can get them rebuilt and out to users. This will help another Rolleiflex user in need! Thank you!