FastMac today announced it has begun shipping TruePower laptop batteries for all models of the PowerBook G4 Aluminum (12”, 15” and 17”). Pricing for the TruePower Aluminum PowerBook G4 batteries start at US$99.95 and offer up to 21% more capacity than the original, notes the company. All customers that placed pre-orders through the company’s Web site will receive their shipments in the next few days.