Go to Amazon.com : http://www.amazon.com/gp/product/B00HLQW7FC?tag=theatrecat-20

UBatteries Laptop Battery Sony VAIO VGN-CR506E - 9 Cell 6600mah (Silver)

UBatteries Li-Ion Replacement Laptop Battery Grade A Cell
Type 9 Cell Lithium-Ion Voltage 111V Capacity 6600mAh Rating 73Whr
CE ROHS Certified
One Year Warranty 30 Days Return