Duracell CEF23 gone bad after first use

[khankll]

ya i also couldnt find it at digikey.jameco.and a host of others,,

 

[(*steve*)]

Yeah, that code on the top of the IC is rarely a part number for small devices like this, It is a code, and you need to look it up. Unfortunately (although you'd think it would be easy) this information is really hard to get.