Go to Amazon Sites : http://www.amazon.com/gp/product/B0046QYGHM?tag=shitmycatsrea-20

HP Pavilion DV4-1431US Compaq Presario CQ50-110US G71-329WM Pavilion G60-117US Laptop Battery

Type Li-Ion Voltage108V Capacity8800mAh12 Cells
1 year replacement warranty30-day refund guarantee after the purchase
High Capacity Replacement battery
Each Superb Choice battery was tested at an original laptop by the manufacturer
If your original battery is a 6-cell battery this 12-cell battery has much higher capacity and works longer hours after each charge However it is bigger heavier and sticks out due to the extra 6 cells It will still fit in your laptop