Battery For HP Compaq 610 615 550 6720s 6730s 6820s Type 491278-001 HSTNN-IB51
Compaq 610. For HP 550. Battery type: Li-ion. Cell: 6 Cells. Compatible Product LineFor HP Compaq. Such as battery, ac adapter etc. Compatible Models：( Ctrl + F for fast search ur laptop model). Number of Battery Cells6.