Warranty 1 Year Voltage 14.8V Battery Type External Cells 4 Cell Cell Type Li-ion 18650 cell Battery Capacity 2200mAh Watt-Hour 30Wh Compatible with HP ProBook 440 Series, HP ProBook 440 G2 Series ,HP ProBook 445 Series,HP ProBook 445 G2 Series, HP ProBook 450 Series, HP ProBook 450 G2 Series,HP ProBook 455 Series ,HP ProBook 455 G2 Series, HP Beats Special Edition 15 Series,HP Envy 14 Series, HP Envy 14-v000 - v099, HP Envy 14-u000 - u099, HP Envy 15 Series, HP Envy 15-k000 - k099, HP Envy 15-x000 - x099,HP Envy 17 Series, HP Envy 17-x000 - x099,HP Pavilion 15 Series ,HP Pavilion 15-p000 - p099, HP Pavilion 15-x000 - x099, HP Pavilion 17 Series ,HP Pavilion 17-f000 - f099, HP Pavilion 17-x000-x099