Egoway Battery for HP VI04, HSTNN-DB6K/I/J/K, TPN-Q139/Q140/Q141/Q142/Q143/Q144, fits Envy 14-v/u000 - v/u099; 15-k/x000 - k/x100; 17-x000 - x099, Pavilion 15-p/x000 - p/x099; 17-f/x000 - f/x099 Battery Type: Li- ion; Voltage: 14.8V; Capacity: 2600mAh; 4 Cell. 100% New from Manufacturer, High Performance; HP VI04, HSTNN-DB6K, HSTNN-DB6I, HSTNN-LB6J, HSTNN-LB6K, 756479-421, 756743-001, TPN-Q139, TPN-Q140, TPN-Q141, TPN-Q142, TPN-Q143, TPN-Q144 Replacement Battery. Overcharger and Discharger Circuit Protection, CE-/FCC-/RoHS-Certified for safety. Operation time: Around 2.5 hours, the actual operation time will depend on how much electricity is required by the device and how you use it. Warranty: 12 Months warranty, 24 x 7 email support.