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Green Cell® Standard Serie HSTNN-IB51 / HSTNN-LB51 / HSTNN-OB51 Batteria per Portatile HP Compaq 550 610 615 6720s 6730s 6735s 6820s 6830s (6 Pile 4400mAh 10.8V Nero) : Amazon.it: Informatica
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7XINbox HSTNN-IB51 10.8V 5200mAh batteria per Laptop per HP Compaq 550 610 Business Notebook 6720s 6730 6730s 6735s 6820s 6830s - AliExpress
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