hello, i am looking for a 15.6 inch laptop that is fairly light and portable, and has alot of hours unplugged.
so far in my research i have come up with the Lenovo U550 and the ASUS UL50AG-A2.
which one would you recommend me, or maybe another laptop?
Did you ever have a laptop made by Dell, HP, Lenovo, Sony, Gateway, etc ? No you haven't cause they don't make laptops. All but a very few brands that you have heard of don't actually build what they sell. The laptops are made by ODM's or Original Design Manufacturers.
You can cut out the middleman by buying direct from an ODM distributor
I have the U550, Core 2 Duo version from Newegg. Love it, but you're not getting 6 hours out of it, unless you turn the screen down all the way and the wifi off. 4+ hours more like it. Lightning fast speed, no downside that I can see to this point.