Laptop freeze randomly on battery

[pareeess]

I just bought a dell e6320 with intel core i7 3520m, 4GB ram and 180GB of intel ssd. On 1st and 2nd boot it runs smoothly but after the 3rd boot the laptop sometimes freezing randomly while on battery but if I plugged in the charger it run smoothly just like the 1st and 2nd boot.
If anyone has any ideas as to what may be causing it or how I could fix it I would very much appreciate it

 

[webworkings]

If this is brand new, it shouldn't give you any trouble at all. I would take it back and have them exchange it for another correctly working device.