The rechargeable lithium-ion batteries that power most of our laptops may be the most practical battery tech we have right now, but they naturally degrade over time as their ions flow back and forth — it’s an inevitable consequence of the way they’re built and the way they work. Eventually, the batteries can’t hold as much of a charge.
Most modern laptops now come with some kind of smart charging technology built in, to limit the number of full charges that happen. How this is implemented varies between laptops — I’ll talk about this, as well as other ways to ensure the battery on your MacBook or Windows laptop stays as healthy as possible for as long as possible.
General battery health
As with smartphones, because of the chemical...
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