Contribution d'origine par : remacberlin ,
The battery bay are standard parts. [http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=2S2032-0-ND|This] one could do the job. Unfortunately they seem to be out of stock at Digi-Key, but i'm shure you can get one at the electronic dealer of your choice. Or cannibalize one of any old motherboard with a coin cell. Soldering the thing in is straightforward.