Not to put too fine a point on it, but people are depending on their laptops more than ever during the COVID-19 pandemic and it may be that they’re leaving them plugged in for longer periods than before. All of the data in the battery health management feature is collected and analyzed locally, with information only being sent to Apple if opt-in to sharing analytics - and even then Apple says that data would be kept anonymous. Apple says a variety of factors will play in to the computer’s decision to engage battery health management, including ambient temperature, processor loads, and charging patterns.Īpple says the feature will be on default but that users can turn it off by heading into the power setting in macOS. So, for example, if you’re the sort of user who tends to have their laptop plugged in nearly all the time, keeping your battery at 100 percent charge all the time is a recipe for shortening its lifespan.
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That includes any MacBook Pro since 2016 and MacBook Air models since 2018. The feature will apply to any MacBook that supports Thunderbolt 3. It’s using your MacBook’s on-device history of charging and battery temperature to determine if your battery lifespan could be significantly extended by this feature. It may be that you don’t need to worry about that anyway, because Apple is being strategic in how it targets who will be affected by this change. Your menu bar may show 100 percent, but that will mean something a little different Instead of meaning that it’s charged to 100 percent of what the battery could take, it will now mean it’s charged to 100 percent of what the battery should take to maximize it’s lifespan.Īpple says that it will of course ensure that it doesn’t have a major impact on battery life, but would not say what percentage a charge may be reduced. What that means for your laptop is that in certain cases, seeing 100 percent battery life in your menu bar may not necessarily mean it’s the maximum your battery could charge to. Some phones now avoid charging all the way to 100 percent until just before you wake up for this reason. Fully charging a battery puts a strain on it that can more rapidly reduce its longevity over time. It does so by not charging the battery all the way up to the maximum in certain cases. On by default, the new feature is intended to extend the overall lifespan of your laptop battery by reducing the rate of chemical aging.
Apple is introducing a new feature in most modern MacBooks called “Battery health management.” It’s going to be available today for developers and will roll into the future macOS Catalina 10.15.5 update.
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