Home / Computers / The PowerBook G4 Aluminum's battery is secured by a latchComputers Technology ramseeker macThe PowerBook G4 Aluminum's battery is secured by a latchUser-replaceable lithium-ion battery on the front edge, held in by a simple latch. Slide it out, pop a fresh one in. No glue, no tools, no hassle — the way a laptop battery should work. Shop computer upgrades on Amazon As an Amazon Associate, Work Notes may earn.Related NotesThe PowerBook G4's graphics and processor are soldered and cannot be upgradedThe PowerBook G4's AirPort card is still upgradeable under the keyboardThe PowerBook 165C's integrated 8.4-inch screen can't be upgradedThe PowerBook G3 Wall Street's ATAPI drive can be swapped or turned into extra storageThe PowerBook G4 Aluminum has a standard SATA slot-loading drive — swap or replace it easilyExploreTrueNAS Mini X+ — the Celeron J4125 handles TrueNAS duties without breaking a sweatLenovo ThinkCentre M90q Gen 3 — LGA 1700 socket supports 12th Gen Core from i3 to i9HP EliteDesk 800 G1 Mini — 4th Gen Haswell, socketed and upgradeableSynology DS423+ — the J4125 keeps doing what it does bestQNAP TS-264 — Intel Celeron N5095 with a 2.9 GHz boostPrevious The Q5 is a hardwood specialist that tolerates low-pile rugsNext The PowerBook 165C still has a viable storage upgrade path in 2026