You cannot work by keeping this laptop on your lap. Your thing’s would become red hot. The hot Wind blowing out of the blower fan from the bottom side of the laptop future worsens the situation. The overheating reaches the dangerous situation during charging and it is highly unsafe to work on the laptop during charging. Battery backup is very poor only 3-4 hours Run very poorly designed product. It take too much time to start I did not except for this of this price.