Apple announced on Thursday that it is voluntarily recalling about 1.1 million batteries used in PowerBook and iBook laptops. The batteries in the recall should be exchanged immediately since they can potentially overheat pose a burning hazard.

Laptops in the recall include

The batteries in question were produced by Sony for Apple - the same company that manufactured the laptop batteries that Dell is recalling. Sony stated that the affected batteries may have microscopic metal particles in the battery cells. If the particles come into contact with other parts of the cell, they can cause a short circuit. In most cases, the battery will simply shut off. In some situations, however, they may continue to operate and overheat or potentially burst into flames.

Apple has additional information about the battery recall on its Support Web site, and users can also call the recall hotline at 1-800-275-2273. The U.S. Consumer Product Safety Commission Web site is also listing the battery recall information.

Your model and serial numbers are on the bottom of the battery.

The battery model and serial numbers are located on the bottom of your laptopis battery, so you will have to remove the pack from your computer to see the numbers.