Chosen Solution

Can the PRAM battery be replaced on the motherboard of a G4 iMac?

Here it is. However, you need to unpeel and re-apply some necessary thermal paste to replace it, only if you’re up to it.

Yes, it uses a 3.6V battery.

After much reasearch several articles fron apple say G4 books don’t (do not) use pram batteries. They use a large capasitor to store power for pram. I just yhought you guys would like to know. Jimmyhhome

no it was an Ibook my key board was mest up and my proof reading sucks. Deleted pram trashed ical prefs. Brotherinlaw is all happy and stuff. Thanks guys Jimmyhhome