PowerSmart 4400mah 8 CELL Battery for HP ProBook 4730s, 4740s, 633734-141, 633734-151, 633734-421, 633807-001, HSTNN-I98C-7, HSTNN-IB2S, HSTNN-LB2S, PR08, QK647AA, QK647UT Battery Type: Lithium-ion (Li-ion) | Weight: 462.80 g Voltage: 14.40V  Capacity: 4400mAh Rate: 63.00 Wh  No. of cell: 8  Color: Black Compatible Part Numbers: 633734-141, 633734-151, 633734-421, 633807-001, HSTNN-I98C-7, HSTNN-IB2S, HSTNN-LB2S, PR08, QK647AA, QK647UT Condition: New, 1 year warranty! Please ensure the product(s) that you are going to buy fits the brand, model, part number and dimension of your device.