Batteria HP / Compaq 6720s 6 Celle 10.8V 5200mAh/48wh compatibile con: HP 550, Business Notebook 6730s/CT, Business Notebook 6720s/CT, Business Notebook 6735s, Business Notebook 6820s, e codici originali: HSTNN-IB62, 451085-141, 451086-121, 451086-161,