Replacement Battery for HP 668811-541, 668811-851, 669831-001, H4Q46AA, H4R53EA, HSTNN-UB3K, HSTNN-W84C, HSTNN-YB3k, RC06, RC06XL Battery Type: Lithium-ion (Li-ion)  Rate: 48.00 Wh Voltage: 10.80V  Capacity: 4400mAh No. of cell: 6  Weight: 295.00 g Compatible Part Numbers: 668811-541, 668811-851, 669831-001, H4Q46AA, H4R53EA, HSTNN-UB3K, HSTNN-W84C, HSTNN-YB3k, RC06, RC06XL 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.