Off Topic: Real Time Clock (PRAM) batter for IIfx

[PB Schechter]

I have a II fx that I use only occasionally, and that wouldn't boot yesterday.
I checked its 2 PRAM batteries, and one measures 3.6V (what the battery says it
should) and one measures about .3V.  They are Maxell ERS3 batteries (1/2 AA);
can anyone point me to a source of a new one?

Alternatively, if anyone can point me to another mailing list, I will be happy
to take this there.

Thanks in advance.

PB Schechter