On Friday, November 30, 2012 2:32:54 AM UTC-8, Gareth Magennis wrote:


had a call from a customer who wanted to replace the CR4250 battery in his
Yamaha AN1X keyboard. He bought a Duracell but it wouldn't easily fit

There's two mechanical variants, both with the 2450 part number.
CR2450 and CR2450N don't fit the same socket.
Some industrial suppliers ( Mcmaster.com for instance) offer both,
but usual stocks of batteries (at shops) offer only one manufacturer's
offerings and would only have ONE of the two.

CR2450 :== McMaster # 7701K58, CR2450N :== McMaster #7702K62
The CR2450N is appropriate for (among other things) my digital micrometer; as
far as I know, it's a Renata product only.