This is a new HP HSTNN-1B1D battery for the HP 17" screen 4720s. This HSTNN-1B1D battery fits flush with the bottom of the laptop. The superior South Korean cells inside the battery cartridge will provide longer run times between charges as well as a longer service life than cheaper batteries.

This HSTNN-1B1D Battery is compatible only with 14.4 and 14.8 volt systems. Check your battery for your current voltage rating to avoid a return.

This HSTNN-1B1D battery is ONLY compatible with 14.4 volt or 14.8 volt systems. Check your current battery to ensure you are ordering the correct battery. It should match the picture above. If your battery is rated at 11.1 Volts or 10.8 volts, your battery can be found here: HP-A811. This high capacity battery will provide about 2 hours to 2-1/2 hours of run time with this computer battery when new, depending on your energy use. The higher capacity battery cells inside this cartridge have an energy capacity of 5200 mAh. This battery will be compatible with batteries rated at 4400 or 4800 mAh and 5200 mAh capacities while providing up to 25% more run time.