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One of the best battery apps available on the store for Windows 10. Then count to 30 and re-install the battery. Although it's a laptop, I actually use it as if it were a desktop computer and I always run it off the mains rather than via the battery. Expand Critical battery action and ensure that On battery is set to Hibernate. when connected with AC adapter it shows fully charged but when adapter is removed it shows 91-92% remaining.
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Smarter Battery - With history of battery capacity.
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We also have some advice on how to shop for a laptop that will run all day.
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