yea the battery is exactly that. I read some guides before. I was asking because there some people on ebay selling the same battery for 20 dollars only because they precised that they selling a PRAM battery replacement.
I think if the voltage (3V) and the dimensions (CR2032) are the same, its stupid asking 20 dollars only because you guarantee its a PRAM battery.
Thank you for your reply and wishing me luck!! I know I will have great fun. My iMac is like my best friend in these years so I will be super careful + I am an assistant surgeon, so for me it will be like operating patient :D