Stay on task and keep up your HP 700 and 800 series Notebook PCs up and running longer with the HP CS03XL Rechargeable Battery, which is designed to last up to three years to help you maximize your investment and lower your total cost of ownership. No interruptions Help ensure solid runtime between charges, or stock backup batteries when you can’t stop to plug in. Smart design Get long battery life in a thin profile that integrates seamlessly into your notebook. World-class support Rest easy with a three-year limited warranty.