Bought this about a year ago and followed the instructions about letting it die out before putting on the charger, to increase battery life. The battery lasted about one minute, when fully charged, but that was fine to me. Then I started taking it out of the charger when charging was complete, as instructed. Bad idea: when I tried to use again, it had no battery. Yes, you read it well, the battery dies out EVEN IF YOU ARE NOT USING IT. Solution: keep the vac connected to the charger all the time (what is not recommended by the manufacturer). They say you have to charge if for 24 hours before using, but you can't keep it charging constantly, or in other words you have to KNOW 24 HRS IN ADVANCE WHEN YOU WILL NEED THE VACUUM. I decided to keep it charging constantly anyways, because I used it for quick pickups. After a few weeks with no use, the vacuum simply doesn't work anymore. The indicator light keeps blinking (no instruction for that in the manual), and it doesn't turn on. Filter is clean, charger connectors are clean, nothing unusual. Don't know if it was because of the constant charging, or because the product is really disposable after a year. Would never recommend it to anyone.