How long does the battery last on a handheld pet vacuum?

Runtime is the most common complaint. Manufacturer claims often exceed real-world results: reviewers and a verified test of the Bissell Pet Hair Eraser put actual runtime closer to 15 minutes, and community reviewers flag battery degradation after a couple of years on several Shark and Black+Decker models. If you need longer runs, look for a removable/replaceable battery.