The battery power on this notebook is incredible. I bought it because it was cheap, and I began to notice that every time I went to use it...it still had the same charge it had when I had set it aside! I'm talking for a week at a time...?! One evening I was trying to get it to show low battery so I could charge it for a trip I was taking and I finally gave up, lol. The only thing I can compare it to is my Ipad. Incredible!