Welcome to a Laptop Battery specialist of the DELL Laptop Battery
Dell's XPS 15 is one of our favorite laptops, thanks to its luxurious carbon-fiber-and-aluminum chassis, its colorful InfinityEdge display and its powerful performance. But what if you want the benefits of Dell's best consumer laptops, but need the power of a mobile workstation for professional 3D modeling, CAD or other intense tasks?
Enter the Dell Precision 5520 (starting at $1,399, tested at $2,659). It has the same chassis, screen and keyboard as the XPS 15, but packs the performance that a professional animator or engineer might need, including an optional 7th Generation Intel Xeon processor and Nvidia Quadro graphics. Add in excellent battery life, and the Dell Precision 5520 is the 15-inch workstation to beat.
The Precision 5520 has the same exact design as the company's gorgeous XPS 15 consumer laptop with battery like DELL Inspiron N5010 Battery, DELL Latitude E6400 Battery, DELL Inspiron N4110 Battery, DELL Inspiron N5030 Battery, DELL Inspiron N5110 Battery, DELL Inspiron N7010D Battery, DELL Inspiron N7110 Battery, DELL Latitude 5537 Battery, DELL 9TJ2J Battery, DELL Precision M4400 Battery, DELL KR854 Battery, DELL P267P Battery. Under its machined aluminum lid sits a luxurious carbon-fiber body, complete with a patterned, soft-touch deck that feels great against your wrists as you type. A nearly bezel-free InfinityEdge display completes this premium look and feel.
Weighing 4.4 pounds and measuring 0.7 inches thick, the Dell Precision 5520 is lighter than the HP ZBook Studio G3 (4.6 pounds, 0.7 inches) and thinner than the Lenovo ThinkPad P50 (5.8 pounds, 1.2 inches). The nearly identical XPS 15 weighs 4.6 pounds and is the same thickness.
You won't need to take along the Precision 5520's power cable for every single excursion. The workstation lasted an epic 11 hours and 57 minutes on the Laptop Mag Battery Test (continuous web browsing over Wi-Fi).
It easily beat the ZBook Studio G3 (5:08), the ThinkPad P50 (8:25) and the mainstream average (6:54). The Dell XPS 15, which we tested with a more power-hungry 4K display, lasted for 8 hours and 23 minutes.
The Precision workstation stays cool while you work. After we streamed 15 minutes of HD video on the notebook, our heat gun picked up a temperature of 78 degrees Fahrenheit on the touchpad (78 degrees), 83 degrees between the G&H keys and 87 degrees along the underside. All of these temps were well below our 95-degree comfort threshold.
Both beauty and the beast, the Dell Precision 5520 packs a vivid display and super-powerful processor into a slim and sexy chassis. Epic battery life is the cherry on top of this tasty cake. The only real knock against the notebook is the placement of its webcam, which leads to Skype calls where you're making people look at your knuckles and up your nose.
The ThinkPad P50 has a better keyboard, but uses a last-gen processor and has 3 hours less battery life. If you want the best combination of mobile workstation power, portability and style, the Precision 5520 is a no-brainer.
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