This is a brand new HP spare 513129 battery. This 513129 battery fits flush with the bottom of the laptop. This 513129 battery replaces the HP ProBook 4720s Battery for your series laptop.

This 513129 battery replacement is typically superior to the original battery and is 100% compatible with your HP ProBook 4720s notebook computer. The 513129 battery is individually tested before shipment and backed by 30 day complete satisfaction guarantee and a 2 year warranty.

This HP spare 513129 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 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.