It's the Dell Latitude 5580, an all-work-and-no-play powerhouse desktop-replacement you can think of as the XPS 15's corporate cousin. ... and available epic battery life. Best Laptop Picks ...

What's big and beefy, but weighs only 4.2 pounds? It's the Dell Latitude 5580, an all-work-and-no-play powerhouse desktop-replacement you can think of as the XPS 15's corporate cousin.

If the Dell QuickSet feature is installed on the laptop, press the "F3" and "Fn" keys together to see the battery meter. Save your work if the Latitude gives you a low battery warning message ...

Which laptop is better for you? The Dell Latitude or Dell Inspiron? ... Models like the Inspiron 17 7000 have spectacular battery life, fast 8th-generation processors and great built-in audio.