I had my Hoover ION for a year before a flashing red light came on on the charger indicating an error. I bought a new charger and it worked right away. Sent it back and asked for a replacement, the replacement did the same. Maybe it was the battery, I don't know. My google search showed it was a loading error. After two unsuccessful attempts to fix the problem and a general slight dissatisfaction with the vacuum in general, I gave up, threw the vacuum away and bought a Shark corded vacuum which is easier to clean and never runs out of battery life.