FastMac announced that it has a full line of replacement batteries for the PowerBook and iBook product line on Friday. The new TruePower high capacity batteries offer up to 56 percent longer run times than the batteries that originally shipped with your Mac laptop. Batteries are available for every model in the the PowerBook G3 line, titanium and aluminum PowerBook G4 line, iBook G3 clamshell models, and iBook G3 and G4 line.
The new TruePower batteries should be shipping in the next two weeks, and are available for pre-order now. The batteries are priced from US$99.95 up to $119.95.