Go to Amazon Sites : br br Anker? New Laptop Battery for HP Pavilion DV9000 DV9100 DV9200 DV9300 DV9310 DV9315 DV9400 br br Battery type Li-ion Capacity 4400mAh63WH Cells 8-cell Voltage 144V br 100 New from Manufacturer Up to 500 recharge cycles over the life of the battery br CE-FCC-RoHS-Certified for safety 24 x 7 email support 8-hr x 5-weekday call support 18-month hassle-free warranty br Grade A cells ensure fast charges and low power consumption Built-in circuit protection ensures both safety and stability br Operation time for standard batteries6-cell 4400mah Around 2 hours the actual operation time will depend on how much electricity is required by the device and how you use it