Complete newb on the topic of re-celling my camera battery
Hi, first post here. I have been having this convo with Gemini but I think you guys/gals would know much better.
I have an old camera (Rolleiflex 6006 mod.2, to be exact) that uses NiCd batteries (10V) with 1.0A medium-acting fuse. When inserted into the camera it just says BC (battery check) and doesn't trigger the shutter. When I plug it into the original charger, the charging indicator stays on forever (it's supposed to turn green within an hour but it stayed orange for 11+ hours). The battery does get warm though, and I think that the indicator lighting up itself is a sign that the charger does recognize that the battery is there. Nonetheless, I think the cells have aged and I want to replace the cell within the original battery cartridge, with li-ion or NiMH.
The camera can take probably up to 16V. There's an aftermarket battery cage with three 14500 cells and a 1.2A fuse, the battery pack is made to charge all three cells simultaneously through a power jack on the battery cartridge. Some users report that this battery pack has fried their camera's PCB.
If my research has been correct, charging all three Li-ion cells simultaneously w/o balancing PCB(?) is unsafe, but take out the cells from the cage and charge them in a separate li-ion charger mitigate this. The 14500 cells are 3.7V each and three cells = 11.1V so it should be safe. I can also replace the 1.2A fuse with the 1.0A fuse. Could you share if you think this is safe?
OR, do you think a DIY cell replacement to Ni-MH 8-cell 9.6V is a viable option? I don't really have soldering experience, but I'm not terrible at fixing stuff. I can get a soldering iron and a multimeter.
I know that letting professionals re-cell my batteries is a more convenient option, but I'd like to use this opportunity and learn how to re-cell my batteries.
Please share what you think! Thanks.
Here are the photos of the battery!