AC Doctor INC 5200mAh SX06 SX09 HSTNN-C49C QK644AA Battery Replacement for EliteBook 2560p 2570p Notebook PC New 6 cells HP EliteBook 2560p 2570p laptop battery SX06 Sx06Xl SX09 replacement 5200mAh 11.1V 206x42x19mm 400g. 10.8V and 11.1V is compatible and interchangeable. Full compatible with your original battery, brand new direct from Professional Manufacturer. CE UL RoHS certified, safe use. 36 months warranty, OEM factory price, US local dispatch. Please Note: Please make sure that the product shape of slot and gap are the same size. The battery part numbers listed in the description matches the battery part number on your original battery before you purchase battery.