Well, I am IT student so I my teachers suggest me to buy Lenovo ideapad 330 so I request my family to buy it I am happy with lenovo ideapad330 because it has high speed and I need to do lot of cooding on it, I don't find any defult in this laptop Talking about its battery . I can work on it nearly5 hour with full charge.lenovo ideapad330 is best laptop for any purpose.I fell bad about its sound when I open it it sounds little bigger from buttom of laptop that is some default I found on it.thanks my teacher who suggest me to buy lenovo ideapad 330