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: HP50 Manufacturer: Green Cell Compatibility list: Compatible with following battery models : QK643AA,628368-241,628368-251,628368-351,628368-421,628368-541,628368-741,628369-421,628664-001,628666-001,628668-001,628670-001,630918-541,630919-421,630919-541,631243-001,659083-001,CC03,CC03031,CC06,CC06051,CC06055,CC06062,CC06X,CC06XL,CC09,CC09100,CCO3,CCO6,CCO9,HSTNN-0B2G,HSTNN-0B2H,HSTNN-CB2F,HSTNN-CB2G,HSTNN-DB2F,HSTNN-DB2G,HSTNN-DB2H,HSTNN-F08C,HSTNN-F11C,HSTNN-FO8C,HSTNN-I90C,HSTNN-I91C,HSTNN-I9OC,HSTNN-LB2F,HSTNN-LB2G,HSTNN-LB2H,HSTNN-LB2I,HSTNN-OB2G,HSTNN-OB2H,HSTNN-UB2F,HSTNN-W81C,QK642AA,HSTNN-UB2H Compatible with following devices : HP ProBook 6570b,HP EliteBook 8460p,HP EliteBook 8460w,HP EliteBook 8470p,HP EliteBook 8470w,HP EliteBook 8560p,HP EliteBook 8570p,HP ProBook 6360b,HP ProBook 6460b,HP ProBook 6465b,HP ProBook 6470b,HP ProBook 6475b,HP ProBook 6560b,HP ProBook 6565b,HP 6360t Mobile,HP mt40 Mobile,HP ProBook 6360p