The Rechargeable Battery for 13" MacBook is a rechargeable, 45-watt-hour lithium-polymer battery for the 13" MacBook notebook computer. The battery is identical to the one that ships with the laptop, allowing it to serve as a spare or a replacement. This is an excellent solution for anyone who needs to replace their MacBook battery or would simply like a spare for extended usage away from a power source.
This rechargeable battery is for the late 2008 13" MacBook with the aluminum unibody.
Spare Battery
Having an extra battery lets you double the time you can use your computer without plugging in, all you have to do is keep a spare charged battery in your carrying case and you will be set for long meetings or flights.
Rechargeable
The Lithium-Polymer battery is easily rechargeable. Just plug the laptop into a power source with the battery installed and it will charge. This allows you to operate your computer off power and charge your battery at the same time.
MacBook Compatibility
This battery is compatible with the aluminum unibody MacBook, introduced in October 2008.