Replacement HP PI06 Notebook Battery for HP Pavilion Envy TouchSmart 14 15 17, 710416-001 710417-001 709988-421 709989-421 HSTNN-LB4N HSTNN-LB4O HSTNN-YB4N HSTNN-YB4O - SKYVAST Battery type: Li-ion; Capacity: 47Wh; Voltage: 10.8V; Cells: 6-cell. Fit with battery models : PI06 PI09 PI06XL 710416-001 710417-001 709988-421 709989-421 HSTNN-LB4N HSTNN-LB4O HSTNN-YB4N HSTNN-YB4O Grade A cell ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and reliability. Customer Questions: Any questions you can contact with us, we will respond within 24 hours. Exchange/Refund Policy: Free exchange/refund within 12 months. You can keep the order before we resend a new one and we will email a prepaid return label to help you return the order.