I fully charged my handheld vacuum before use. I used it to vacuum my car and was able to clean the whole car without losing suction power. The vacuum cleaner worked well. I love the attachments that dust cup holders and side pockets, air vents and seats. I like the slim design. That's easy. It's wireless. And the HEPA filter can be washed and reused. The vacuum cleaner comes with an additional filter. Overall, I am satisfied with this E-ACE rechargeable vacuum cleaner. I hope customers find this review helpful.