CM03XL Long Life Notebook - Lithium-Ion Polymer, 4504Ah, 11.1V, 50Wh

Make a smart choice with the HP CM03XL Long Life Notebook Battery, which has up to a three-year life span^[1] to help lower your total cost of ownership. Help reduce your overall battery waste by using fewer batteries over the life of the notebook.
Use this long-life battery with select HP ProBook 800 series notebooks and HP Z Books to keep working between charges, or keep one as a backup when you can’t stop to plug in.
Get longer battery life in a thin design that integrates into the notebook to keep its profile sleek.

HP CM03XL Long Life Notebook Battery, Battery