My Pet Ext lasted 4.5 yrs no problem, and I could keep it plug in 24/7. Even though both weigh the same at 5.8lbs, the remobable vac in the lithium cordless is heavier. I miss the brushes that the EXT Pet had on the sides of the head. This one is hard to plug the chord in. It is ok, but I wish they hadnt discontinued thecPet EXT!! i use for laminate floors and carpet. It is not any easier to clean than the Ext it replaced. WHY did you discontinue the PET EXT, i used that one on wall to wall carpeting and tile WITH 2 CATS and dusty litter. this 1 works, but i miss my Pet EXT!! I love Bissell, they halp pets, I also own the Zing corded bagged vac.