Warranty 1 Year Voltage 11.1V Battery Type External Cells 6 Cell Cell Type Li-ion 18650 cell Battery Capacity 4000mAh Watt-Hour 44Wh Compatible with Inspiron 14R?Inspiron N4010-148,Inspiron N4010D Series,Inspiron 13R,Inspiron N3010D Series,Inspiron 17R?Inspiron N7010 Series,Inspiron 15R N5010,Inspiron 15R N5010D-148,Inspiron 15R N5010D-168(Digital Certification)