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We run the Laptop Mag Battery Test on an 802.11ac Wi-Fi network. Connecting to a 5-GHz connection rather than an older, 2.4-GHz connection can save your laptop’s battery life, since 802.11ac networks use less power. It’s a quick way to increase your internet speeds as well as your battery life. Check out our top picks for the best 802.11ac routers.

Backlit keyboards look nice, but they are huge battery sucks. If you’re a touch typist and you’re sitting in a dark room, you’ll have no problem turning off the backlight function, and you’ll reap some benefits in terms of battery life. You can usually turn off backlighting by hitting the Function (FN) key and pressing a backlight key on the top row of your keyboard (some computers may not require you to hit the function key).

They’re not pretty, but Windows 10’s high-contrast themes can save some energy. They use black pixels, with white and yellow text, which is far more energy-efficient than bright white background. These themes are meant to help make it easier for you to see the display, but this is a nice benefit on the side.The Edge and Firefox browsers will automatically adapt to the high-contrast theme. Upon opening Chrome, you will be offered the opportunity to download a high-contrast extension.


Airplane mode will shut off your Windows 10 laptop’s wireless radios, which will disable Bluetooth and Wi-Fi. It’s a quick way to save some electricity, as long as you can get your work done locally. Most laptops have a function key assigned to this, but you can also open the Action Center and turn on Airplane mode there.

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Anything you have attached to your laptop is sucking a little bit of power. Whether you’re syncing a phone, backing up your data or have a disc you just burned sitting in your DVD drive (yes, some people still have those), they all require power. Disconnect all of your extras to save a little juice.You could have programs running in the background that you don’t even know about. Often, this is because these programs are set to launch when you boot up your laptop.

To see what runs at startup, go Task Manager > Startup. This tab is filled with programs that could be connecting to the internet, even when you didn’t start them up yourself. If there’s any app running automatically in the background that you don’t need, click Disable to remove it from this list"


You may have your antivirus software set to automatically scan your laptop at the same time each week. That’s a good idea, as it helps you keep your computer clean. But if the scans run while you’re on battery power, you could lose quite a bit of juice. Depending on your antivirus program, you may be able to delay scheduled scans until you’ve plugged in your notebook. Alternatively, you should pick a time when you’re likely to be near a wall socket.

Your screen backlight uses the most power of any component in your notebook, so you can save a lot of juice by turning it down to the lowest acceptable level. You can manually raise and lower the brightness in increments of 10 percent by hitting the appropriate key combination for your laptop (example: Fn + left/right arrows on the Acer Aspire TimelineX series), but we recommend changing the brightness in your power profile so it lowers automatically every time you unplug.

To lower the brightness level in your power profile:

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Select Power Options from the control panel.
Click Change Plan Settings next to your current power plan.
Select “Change advanced power settings.”
Expand Display, then Display brightness.
Enter a brightness percentage for On Battery, then Click OK.
Experiment with different brightness levels to determine which is the lowest you can tolerate.