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 Pro Compatibility
This battery is compatible with the aluminum unibody MacBook Pro, introduced in October 2008.
Type
Lithium-polymer
Power
Capacity: 60 Watt-Hour
O que vem na caixa
Apple
Rechargeable Battery for 15.4" MacBook Pro (Aluminum)