NewerTech® : Batteries : 3.6V Lithium 1/2 AA PRAM Battery for Mac®
If I remove the dead PRAM battery from my iMac G3, how does it help the computer to boot? - Quora
A reminder to remove the PRAM battery from your Mac, or replace it with a new one every few years to prevent this from happening. This was a Macintosh IIvx with its
CMOS: What It Is and What It's For
How to Check Your Computer's CMOS Battery | Techwalla
I need some help finding a replacement PRAM battery for a PowerBook G4 DLSD (Li-Po) | 68kMLA