HP is dedicated to providing customers with innovative power solutions to increase employee productivity and reduce the total cost of owning your notebook. The HP Long Life Battery has up to a three year life span - up to two times longer than most 6-cell Li-Ion notebook PC batteries. With both run-time and battery life span in mind, HP also offers the industry's first three-year limited warranty on the HP Long Life Battery. New technology reduces overall battery waste by requiring fewer batteries to be used over the life of the notebook. HP remains committed to both business and the environment. - Battery replacement is a snap. Customers can easily replace the battery without a technician's assistance. - With up to three years of warranted performance*, businesses can refresh their notebooks/batteries for mission-critical employees and re-assign the current notebook battery to other employees to extend the value of the initial purchase. 3 year limited warranty or 1000 cycles. Battery cycles is the total number of full charge/discharge cycles a battery yields before it can no longer hold a useful amount of charge. - HP is committed to protecting the environment. New technology reduces overall battery waste by requiring fewer batteries to be used over the life of the notebook.