This is a brand new Extended Run HP ProBook premium grade replacement battery for the HP 17" screen 4720s. The main drain on a computer battery is the size and brightness of the display screen. Because of the large screen that comes with the 4720s, many people like the larger capacity battery featured here because it provides an additional 1 1/2 hours of run time of the standard size battery. This larger capacity battery pack will protrude to the bottom of your laptop about 1 inch. If you are using a docking station, the larger battery pack on the bottom of the laptop will prevent you from connecting to the docking station. Choose the 6 cell version of this battery instead. 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. In addition, Li-ion batteries are not subject to the memory effect common with older battery technology. This means you can recharge your laptop any time without diminishing your battery capacity. This laptop battery replacement is typically superior to the original battery and is 100% compatible with your HP ProBook 4720s notebook computer. The battery is individually tested before shipment and backed by 30 day complete satisfaction guarantee and a 2 year warranty.

This 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 3 hours to 5 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 6600 mAh. This battery will be compatible with batteries rated at 4400 or 4800 mAh and 5200 mAh capacities while providing up to 50% more run time.

This battery replaces the HP ProBook 4720s Battery for your series laptop.

Laptop Battery Express only deals with brand new premium computer batteries. We never carry recycled or used batteries. We only use the highest quality cells inside the battery pack so you will have a long service life (300-500 recharge cycles). We do not use cheaper battery cells which can wear out in a little as 6 months. Our inventory turns rapidly and you will always receive a freshly manufactured battery.