Key Features: Compatibility: HP EliteBook 2560p / 2570p series Part Numbers Supported: CC06, CC06X, HSTNN-IB2R, HSTNN-LB2R, 628664-001, and more Battery Type: 6-cell Li-ion (standard) / 9-cell Li-ion (extended) Voltage: 10.8V – 11.1V Capacity: 4400 mAh (47 Wh) standard / up to 7800 mAh (93 Wh) extended Runtime: 3–8 hours depending on version and usage Advanced Protection: Overcharge, overcurrent, and short-circuit safe Easy Installation: Brand-new replacement, plug-and-play Lightweight and portable for maximum convenience