MojoKid writes: Mobile workstation notebooks typically offer a fair degree of performance but usually at the expense of battery life. It comes with the territory for machines that are configured with higher-end processors with discrete graphics chips, as well as high-end displays that take more power to light up. Lenovo, however, seems to have found a way to strike a better balance with their new ThinkPad W550s, which comes equipped with an Intel Core i7-5600U CPU, an NVIDIA Quadro K620M GPU, and a 15.5 inch IPS display that sports 2880X1620 native resolution. With that kind of horsepower and that many pixels to push, you would think untethered up-time wouldn’t be its strong suit but Lenovo configured a snap-in extended battery for the W550s. The 6-cell extended battery, in combination with its 3-cell internal battery, was able to power the machine for over 18 hours of light-duty web browsing in real-world testing (Lenovo claims up to 20 hrs of battery life). The machine also lasted over five hours under heavy-load Battery Eater testing, and the extended battery is unobtrusive, tilting the keyboard up slightly toward the user but keeping well inside the machine’s footprint.
Read more of this story at Slashdot.