Newer Technology (NewerTech) and Other World Computing (OWC) today introduced the NuPower Ti 4800mAH high-capacity replacement battery for all Titanium PowerBook G4 15-inch models (400MHz-1GHz). According to the two companies, the NuPower Ti battery is the highest capacity battery ever available for the PowerBook with a capacity of 71 watt-hours, giving it up to 42 percent more capacity than any other Apple or third-party internal battery option available. The NuPower Ti 4800mAH battery is currently in stock and available online for US$149.99.