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Here at PCMag.com, we take our ratings pretty seriously. A highly rated laptop has to provide strong overall performance, must be equipped with up to date components, and it needs to be a good value for the price. And we don't simply read a spec sheet to form our opinions—every item we review has been lab-tested, measured, and used by the reviewer so that we can provide you with the facts you need to be an informed shopper. The best in class will get our Editors' Choice stamp of approval because we can confidently say that it's the best of its kind.
But some products stand out in one area above all others. For these products, we have the PCMag Extreme Performance Awards, highlighting the top performers in specific and distinct areas of performance. They may not be the prettiest, the fastest, or the most affordable, but they rank highest in one area, dominating the category.
When it comes to laptops, few specifications are as important as battery such as dell 3117J battery , Dell 8K1VG Battery , Dell Alienware M11x Battery , Dell Alienware M14x Battery , Dell PT6V8 Battery , Dell R7PND Battery , Dell PG6RC Battery , Dell Precision M6600 Battery , Dell Precision M4600 Battery , Dell Latitude E5420 Battery , Dell Latitude E5220 Battery , Dell Latitude E6420 Battery life. It's hard to care about processor speeds and hard drive capacities when you can't even power up your laptop. The portability of the notebook design is moot when you can't stray from a wall outlet for more than an hour or two.
Now, bear in mind, that for the following laptops we're not looking at the performance, the design, or the overall rating. These laptops have been selected solely for their longevity when disconnected from the AC umbilical cord, their ability to last for hours and hours between charges. Each laptop has been tested using MobileMark 2007, and represents the top performer on the market for each category, earning our Extreme Performance Award. But one caveat: Just because a laptop will take you through your workday or a cross-country flight doesn't necessarily mean that it will be able to do all the work you need, or that the laptop will be aesthetically or ergonomically pleasing.
These are the endurance athletes, the long-lived few that lead their respective categories in battery life. Some extend battery life by reducing the demand for power, sacrificing performance and components in order to stretch the battery life for another hour or two. Others simply provide more power at the outset, pairing standard hardware with giant batteries. And finally, the are are some who fall in between, pruning the list of components, optimizing the power usage, and backing it up with an all day battery.