Warranty 1 Year Voltage 10.8V Battery Type External Cells 6 Cell Cell Type Li-ion 18650 cell Battery Capacity 4000mAh Watt-Hour 43Wh Compatible with HP Envy 14 Series, HP Envy 14t Series, HP Envy 14z Series, HP Envy 14 Touch Series, HP Envy TouchSmart 14 Series, HP Envy TouchSmart 14t Series , HP Envy TouchSmart 14z Series, HP Envy 15 Series, HP Envy 15t Series, HP Envy 15z Series, HP Envy 15 Touch Series, HP Envy TouchSmart 15 Series, HP Envy TouchSmart 15t Series, HP Envy TouchSmart 15z Series, HP Envy 17 Series, HP Envy 17t Series, HP Envy 17z Series, HP Envy 17 Touch Series, HP Envy TouchSmart 17 Series, HP Envy TouchSmart 17t Series, HP Envy TouchSmart 17z Series, HP ENVY Leap Motion Series, HP ENVY 17 Leap Motion Series, HP ENVY 17 Leap Motion SE Series, HP ENVY M7 Series, HP ENVY TouchSmart M7 Series, HP ENVY TouchSmart M7t Series, HP ENVY TouchSmart M7z Series, HP Pavilion 14t Series, HP Pavilion 14z Series, HP Pavilion TouchSmart 14 Series, HP Pavilion TouchSmart 14t Series, HP Pavilion TouchSmart 14z Series, HP Pavilion 15t Series, HP Pavilion 15z Series, HP Pavilion TouchSmart 15 Series, HP Pavilion TouchSmart 15t Series, HP Pavilion TouchSmart 15z Series, HP Pavilion 17 Series, HP Pavilion 17t Series, HP Pavilion 17z Series, HP Pavilion TouchSmart 17 Series, HP Pavilion TouchSmart 17t Series, HP Pavilion TouchSmart 17z Series