Battery Type: Li-ion (Lithium-Ion)
Battery Voltage: 11.1V
Battery Capacity: 4400mAh / 5200mAh / 7800mAh (depending on version)
Number of Cells: 6-cell / 9-cell (for extended capacity models)
Battery Color: Black
Compatible Models: HP EliteBook 2540P
Dimensions:
6-cell: Approximately 204 x 52 x 21 mm
9-cell: Larger for extended capacity
Weight:
6-cell: Approximately 350g
9-cell: Approximately 470g
Battery Life:
4400mAh (6-cell): Up to 3-4 hours
5200mAh (6-cell): Up to 4-5 hours
7800mAh (9-cell): Up to 6-8 hours (depending on usage)
Replacement Part Numbers: HSTNN-CB0E, HSTNN-CB0F, HSTNN-I63C, HSTNN-I62C