I had previously owned 2 other Eureka Cordless stick vacuums and loved them...this one had a bonus battery pack.  I fully charged the batteries, but found when I used them, both of them lasted from 1 minute to the most 2-3 minutes.  I kept switching the batteries on the charger, but this continued to this day...Unfortunately, I waited too long to return them,, during this time I had to take my husband to the Mayo Clinic twice and my brother-in-law just passed away yesterday..  I wish the seller would give me the phone number or address of the Eureka company as it is a defective piece of merchandise.  I feel the Eureka company would want to make this right...