Brian Gaff wrote

Hmm well the cmos batteries seem to be being sold in packs of 2,

Not always.

seems a little odd since by the time you need the second one either the
machine will be too old or died.

Not when plenty of other stuff uses them now.

My kitchen scales and bathroom scales do.

"Harry Bloomfield" wrote in message
...
Brian Gaff submitted this idea :
Erm what is wrong with a good old battery like the ones in computers for
the comes?

I just thought I had one on the shelf, put the cap to some use.