For HP Compaq 610 615 550 6720s 6730s 6735s 6820s Battery 491278-001 HSTNN-IB51

Compatible Model 16730s/CT 6735s 6820s. Compatible ModelHP Compaq 610 615 550 6720s 6730s 6735s 6820s,491278-001 HSTNN-IB51. Compatible Product LineFor HP Compaq. Compatible Model 2;HP Compaq 550 610 615.

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