This is a new HP EliteBook and ProBook Extended Run battery. This battery is going to be physically larger than the original and will protrude to the rear of the laptop of 1 inch.

This battery replaces the HP EliteBook 8640p 8640w 8560p and ProBook 6360b 6360t 6460b 6465b 6560b 6565b laptops and additional machines which are listed at the extreme bottom of this web page.

In addition, 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. 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 EliteBook and ProBook notebook. The battery is individually tested before shipment and backed by 30 day complete satisfaction guarantee and a 2 Year warranty.

You can expect about 3 hours to 4 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 7800 mAh. This battery will be compatible with batteries rated at 5200, 4400 or 4800 mAh capacities while providing up to 50% more run time.