Quote Originally Posted by Elox
Or if you don't like that idea look at these adapters:

www.paulbg.com/Nikon_F_meter_batteries.htm

I bought several and have been very happy with them. I have found a few places they don't work, but they work fine in my YashicaMat 124G and a couple of older meters.
Basically, the Wein cell is identical to what you get with this adapter. The Wein cell also consists of a washer type device that provides spacing for the battery. I just buy the Wein battery and when it dies, replace the inner battery part with the same hearing aid battery this guy uses. It is cheaper and you don't have to order over the internet if you have a decent camera shop in town.