We are offering laptop batteries type:lithium-ion voltage:14.8 v capacity:4400 mah color:black cells:8 cells compatible part numbers: hstnn-ib62 451085-141 451086-121 451086-161 451568-001 gj655aa hstnn-ib51 hstnn-ib52 replacement laptop models: hp 550 business notebook 6720s...