Penryn MacBook Pro Battery

[TSE]

Well, after 3 years the battery in my brother's MacBook Pro doesn't hold a charge for more than 20 minutes.

Where is a good place to buy a new MacBook Pro battery on the cheap?

I found: http://eshop.macsales.com/Customized_Pages/Framework.cfm?page=nwt_battery/macbook_pro_15.html

Is this a good one? I see it's a generic brand.

 

[alphaod]

The third party batteries sold from OWC are very good. They are not some "generic" brand, but one that's quite reputable.

Another good choice would be the TruePower battery from FastMac:
http://store.fastmac.com/product_info.php?products_id=3