100% compatible with HP batteries - Fully compatible with HP Compaq 6720s 550 Compaq 6730s Compaq 6735s Compaq 615 HP Compaq 6830s Compaq 610 HP Compaq 6820s Compaq 510 515 516. HP Compaq 6735s, Compaq 6730s,Compaq 615.
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