Some laptop manufacturers include utilities that will calibrate the battery for you. The battery’s power meter will see how long the battery actually lasts and get a much more accurate idea of how much capacity the battery has left. Recalibrating your battery is simple: just let the battery run from 100% capacity straight down to almost dead, and then charging it back to full. Check your device manufacturer’s documentation to learn whether battery calibration is necessary on your device or not.
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For example, Apple recommends battery calibration for older Macs with user-replaceable batteries, but says it’s not required for modern portable Macs with built-in batteries. Some modern devices may not require battery calibration at all. When this happens, it’s definitely time to calibrate the battery.
However, if you don’t calibrate your battery regularly, you may eventually find your laptop suddenly dying on you when you’re using it-without any prior warnings. In reality, you likely don’t have to do this that often if you’re not too worried about your laptop’s battery readings being completely precise. This helps keep your battery readings accurate. Manufacturers that do recommend calibration often calibrating the battery every two to three months. How Often Should You Calibrate the Battery? And Acer has done a good job of balancing price and performance.Calibrating the battery won’t give you longer battery life, but it will give you more accurate estimates of how much battery power your device has left. It’s not that easy to find all these attributes in a single product.
If you’re looking for a notebook with a large touchscreen and respectable performance, Acer’s Aspire M is a good choice at a price that won’t instill sticker shock. The built-in high-def webcam was fairly typical, producing decent if not great video in Skype calls. The Aspire M also supports dual-band 802.11n Wi-Fi. ROBERT CARDIN Although the Acer Aspire M is ultraslim, measuring just 0.7 inch thick, it weighs almost 5 pounds.Ĭonnectivity and port options are basic: Two USB 2.0 ports (but just one USB 3.0 port), an SD card slot, headset jack, gigabit ethernet, HDMI, and an Acer Converter Port (for dongles, such as VGA). The Aspire M’s audio subsystem, on the other hand, is very good, thanks to a strong amplifier, four bottom-mounted speakers, and Dolby Home Theater.
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Acer didn’t include an optical drive, but when you’re streaming video, 1080p resolution looks so much better-especially when you’re up close to the screen. The display itself is bright and pleasing still, I was a bit surprised by Acer’s decision to go with a resolution of only 1366 by 768 pixels on its 15.6-inch screen.
The touch controls-a multitouch touchpad (with mechanical corners for right and left mouse clicks) and the Aspire M’s 10-point touchscreen display are responsive and fun to use. A little sculpting on the keys and perhaps some extra spacing between the standard keyboard and the keypad would have helped. But good luck landing on the correct key if you’re a touch typist: They’re flat and slippery, and it can be difficult to find keys that are normally on or near the right edge (backspace and delete, for example). The plastic interior matches the color of the lid, contrasting nicely with the black island-style keyboard-a standard-size backlit model that includes a numeric keypad. The Aspire M’s design makes a good first impression, with its pewter-colored brushed metal lid and black soft-touch underbelly. ROBERT CARDIN The 15.6-inch display allowed Acer to fit a full-size keyboard, including a numeric keypad, into the Aspire M’s chassis. That’s one of the best running times we’ve seen from any laptop this year. But its Haswell architecture clearly helped Acer’s machine hold its own in tasks involving number crunching (image editing, for example), and contributed to its impressive battery life of more than 7 hours. It’s easy to see where the Aspire M falls behind in performance: With any tasks involving storage retrieval, its slow hard drive can’t compete against solid-state drives (or SSD caches), which are becoming increasingly common. Acer’s Aspire M performed well on our benchmarks, but it’s not a barn-burner.
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