Laptop Battery Life

[bladder23]

What is the life of a 4-cell vs 6-cell battery on a average laptop?

With normal features (wifi, decent brightness, etc)

 

[corkyg]

Probably about 1.5 to 2 hours vs. 2.5 to 3 hours. There are a lot of other vaiables involved. CPU, OS, type of HDD, amount of RAM. If you make all of those the same, then . . .

 

[0roo0roo]

its 50% more?
assuming same hardware. different cpu/drives chipsets use different power. lcd lit by led uses less power also.