Fujitsu Introduces the LifeBook S2000 Thin and Light Notebook with Next-Generation AMD Turion 64 Mobile Technology
Notebook Ideal for Mobile Professionals and Students On-the-Go
From the data sheets:
Turion: 4 hrs on main battery, up to 7 hrs with both modular bay and main battery.
PentiumM: 3.75 hrs on main battery, up to 6.5 hrs with both modular bay and main battery.
Yes, that's with the same battery. If you take a look at Fujitsu's eCommerce site, the S2000 is $200 less at each of the 3 configuration levels.