Make sure to remove your pram battery in your SE30. It can do some damage! : r/VintageApple
iMac 2008 CMOS Battery replacement - Apple Community
MacBatt CR2032 PRAM Apple Macintosh battery from Siliconinsider on Tindie
SAFT LS14250 3.6v PRAM Battery For Apple Macintosh eMac iMac PowerMac – local338
If I remove the dead PRAM battery from my iMac G3, how does it help the computer to boot? - Quora
Apple iMac MacPro Mac mini PRAM Battery – local338
1998 Bondi blue iMac rev A had it's pram battery explode and doesn't boot. This is after I cleaned the chips and board with alcohol. Is this savable? : r/VintageApple