CWK&reg; New Replacement Laptop Notebook Battery for HP ENVY TPN-L110 TPN-L111 TPN-L112 TPN-Q117 TPN-Q119 HP ENVY 709988-421 709988-541 709988-851 709989-421 HP HSTNN-UB4N HSTNN-LB4O HSTNN-YB4O 709988-851 PI06 HP 17 e017dx 710416-001 HSTNN-YB4N HP ENVY HSTNN-UB4N HSTNN-YB4N HSTNN-YB4O Condition: Brand New - Grade A cells Battery Type: Li-ion Voltage: 10.8 Volt (11.1 Volt compatible) Capacity: 5200mAh (Better than 4400mAh) 90 Day Money Back. Buy with confidence!