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OEM Apple PRAM CMOS BIOS Battery 820-1484-A for PowerBook G4 15" A1046 A1095 | eBay
Apple PowerBook Titanium G4 15" PRAM Battery Fix - YouTube
$25 dollar ebay 2001 PowerBook G4 Titanium. Advertised as not powering on, reset the pram battery and it's good as new. No chipping and hinge damage. Near mint condition. : r/VintageApple
Apple Battery PowerBook G4 A1001 PRAM CMOS BIOS Battery 820-1343-A
December | 2009 | D-Mac's Stuff
820-1819-A Apple Powerbook G4 15 A1138 Pram Backup Battery (Refurbished)