No matter how stacked its specs are, a laptop is useless if it can’t hold a charge. Fortunately, there are plenty of notebooks that go the distance. Using our Laptop Mag Battery Test (continuous Web surfing over Wi-Fi), we’ve identified the 10 longest-lasting notebooks on the market. We’re talking anywhere from 9 hours to more than 20 hours of endurance, which should more than suffice for that cross-country fight, long day of meetings or multiple, back-to-back classes.
Lenovo's X200 ThinkPad series is synonymous with portable productivity, and the X240 lets you get more done than ever without rushing to the nearest outlet. This lightweight laptop's built-in battery provides a good 7 hours and 40 minutes of juice, which stretches to a whopping 20 hours and 28 minutes when you upgrade from its 3-cell to its 6-cell battery. This endurance is the most we've ever gotten from a laptop without a sheet battery attached to the bottom, and makes the X240 the perfect productivity companion.