Apple updated the 17-inch MacBook Pro today, bringing it in line with the “unibody” notebooks first unveiled in the fall. With one twist:
Apple engineers custom-designed lithium-polymer cells to create the largest possible battery, then they went even further: They built the battery right into the computer, eliminating the space-consuming mechanisms and housings that standard removable batteries require. The result is a battery that’s 40 percent bigger than the previous generation and offers up to 8 hours of wireless productivity on a single charge — all in a notebook that’s less than an inch thin, weighs just 6.6 pounds, and remains the same price as the previous-generation model.