I bought mine April 11th of this year. My lithium battery does nothing , I have to keep the computer plugged in at all times, I can’t even travel with this . It shuts down and I have to wait 2 hours to log back on. Trying to use it for work , it’s just not optimal . Got frustrated, tried contacting seller multiple times with no response . Very upsetting for almost $650 USD . I would try a trusted and better seller ! Don’t buy from them !