$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
Amazon.com: VINTRONS 1800mAh Battery for Apple PowerBook G4, A1107 17'', : Electronics
Apple PowerBook Titanium G4 15" PRAM Battery Fix - YouTube