APPLE iBook 12.1 Extra Battery Kit

For travel or back-up, choose an extra rechargeable lithium ion battery that provides up to 6 hours of battery life for your new iBook.

A 50-watt-hour rechargeable lithium ion battery that provides up to 6 hours of operation depending on battery saving features used and system configuration. This battery is compatible only with 12-inch iBook having two USB ports.

* this is for G4 12" White iBooks only