Warranty 1 Year Voltage 14.6V Battery Type External Cells 4 Cell Cell Type Li-ion 18650 cell Battery Capacity 2200mAh Watt-Hour 30Wh Compatible with HP 240 G4 Series,HP 245 G4 Series,HP 246 G4 Series,HP 250 G4 Series,HP 255 G4 Series,HP 256 G4 Series, HP Notebook 14 Series,HP Notebook 14g Series,HP Notebook 15 Series,HP Notebook 15g Series.