Chris Saribay writes: "Newer Technology and Other World Computing have come together and created a series of replacement batteries, notably, those that offer the prospect of longer battery life. Apple’s batteries fresh from the factory are good and well enough, but to say that they retain a strong charge is not exactly an accurate statement. In this review, we’ll be testing Newer Technology’s NuPower High Capacity Battery for 12” Aluminum Powerbooks, but the company also offers similar replacement batteries for other Apple products."