Genuine Apple Lithium Ion Battery for a 12-inch G4 White iBook. This battery used, and is compatible with the iBook (12-inch 16 VRAM), iBook (12-inch 800 MHz 32 VRAM), iBook (12-inch 900 MHz 32 VRAM), iBook (12-inch Opaque 16 VRAM), iBook G4 (12-inch Late 2004), and iBook G4 (12-inch Early 2004). This part is also compatible with the Non-Opaque 12-inch iBooks, but is not an exact color match to those models. This part is not compatible with the original (clamshell) iBooks or 14-inch iBooks. Used battery (holds at least a 2-hour charge).