The RTC chip was a Motorola MC146818. And the plastic was easy to cut, thus I simply removed the old cell and put a support with a new cr1220.
![](https://blog.pommerie-michel.fr/wp-content/uploads/2020/12/IMG_20201129_181213-999x1024.jpg)
Misc. Projects&Random Useless Stuff
Well… Mostly useless stuff, in fact !
The RTC chip was a Motorola MC146818. And the plastic was easy to cut, thus I simply removed the old cell and put a support with a new cr1220.