Panasonic CR1220 Lithium Coin Battery - 3V Long-Lasting Power for Watches, Calculators & Key Fobs - 1 Pack

I bought this for my Canon Powershot A520. After several years of using my camera it started to prompt me to set the date every time I switched the camera on. Very annoying! I just ignored the prompt, but of course, my photos didn't then have a correct date! After having taken my camera into Jessops (before the local store shut down) and been told that they'd need to send it away to Canon to see what the problem might be (!!), I decided to try to diagnose the problem online. Very quickly I saw this battery advertised, with reviewers explaining that it solves the problem I had with my camera. I ordered the battery. It arrived promptly. Easy to fit, and solved the problem! Thanks very much to earlier reviewers! Saved me lots of money and future hassle!I used this to replace a battery in my CASIO G-SHOCK watch. It functions as intended. No problems whatsoever.It worksE' una normale pila a bottone, funziona benissimo e ringrazio Amazon per la sua reperibilità, perchè qui da me, le pile a bottone, sono praticamente scomparse. Un poco costose. .......Lo consiglio a tutti lo messa nella mia macchina fotografica