Sealed-Battery Macs Earn High Marks
Batteries can't be replaced, but few do so anyway
By Matt Cantor,  Newser User
Posted Jun 25, 2009 10:44 AM CDT
Several customers use the new MacBook Pro laptops at an Apple store in Palo Alto, Calif., Thursday, June 11, 2009.   (AP Photo/Tony Avelar)
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(Newser) – Removable notebook batteries are convenient in theory, but hardly anyone actually replaces them. Apple and other firms are responding with sealed-in batteries, which, Apple says, can be bigger and thus last longer. Walter Mossberg ran his “own harsh battery test” on the new MacBook Pros and found their sealed-in powerhouses  “excellent,” he writes for the Wall Street Journal.

The 13-inch notebook’s battery lasted nearly 5 hours; the 15-inch model’s lasted 5 hours and 21 minutes—and that’s with WiFi on, music pumping, and screen bright. “I estimate that, in a more normal usage scenario, both machines would come close to Apple’s claim of around 7 hours between charges—essentially a full workday of unplugged use,” Mossberg wries.