Hi-quality 6-cell 4400mAh laptop/notebook Battery for HP Pavilion DV4 DV4T DV5 DV5T DV5Z DV6 G50 G60 G70 Compaq Presario CQ40 CQ45 CQ50 CQ60 CQ70 HDX16 HDX 16 Series, fits HSTNN-IB72 KS524AA KS526AA laptop battery