Go to Amazon.com : http://www.amazon.com/gp/product/B0009O1JGG?tag=theatrecat-20
Battery-Biz Inc. 11.1 Volt Li-Ion Laptop Battery
Square shaped battery with six slit-type contacts on side
100 OEM compatible
Full one year warranty
Guaranteed to meet or exceed original specifications
Li-Ion
111 Volt Li-Ion Laptop Battery