Description: Capacity: 4400 mAh Voltage: 10.8V (11.1V) Number of cells: 6 Cells technology: Li-Ion Warranty: 12 months Cells manufacturer: Green Cell Colour: Black Overdischarge protection: Yes Overcharge protection: Yes Product code: HP49 Manufacturer: Green Cell Compatibility list: Compatible with following battery models : RW556AA,404866-622,404866-642,404886-621,404886-642,404887-221,404887-241,404887-261,404887-621,404887-622,404887-641,404887-642,405191-001,411126-001,412779-001,412780-001,441675-001,451713-001,451714-001,481086-001,481087-001,484784-001,492548-001,492549-001,EH767AA,HSTNN-DB22,HSTNN-DB65,HSTNN-FB21,HSTNN-FB22,HSTNN-Q15C,HSTNN-XB21,HSTNN-XB22,MS03,MS06,MS06XL,MSO3,MSO6,MSO6XL Compatible with following devices : HP EliteBook 2540p,HP EliteBook 2530p,HP Compaq nc2400,HP Compaq nc2410,HP Compaq 2400,HP Compaq 2510p,HP 2533t Mobile