... .5-3 hours Availability: In Stock 2.Replacement Battery manufactory for HP 500SpecsType: Li-ion Capacity: 2350mAh Volt: 14.8 ... working, one year warranty ,CE,MSDS, RoHS ISO9001,100% safe for use Fit model:HP Compaq 6720s Compatible Part Number: HSTNN ... GJ655AA, HSTNN-IB51, HSTNN-IB52 Fit Machine Model:HP 500 Series HP compaq series Business Notebook 6720s, Business Notebook 6720s/CT, Business Notebook ...