Lithium-ion batteries have terrific properties that have caused a revolution in everything from tiny flashlights to Ford trucks. Yes, you have to take them seriously if they show any sign of having a physical failure, such as swelling or smoking (fave.co/3HTaKw7), but that is fortunately an incredibly rare occurrence relative to the vast number of lithium-ion batteries in use.
Wearing down over time is quite common and can be frustrating as a Mac laptop owner, used to many hours of use, now eking out just a few. Unlike older generations of batteries, Li-ion batteries don't have a memory effect, where incomplete charging can reduce their maximum charge. Rather, the chemical nature of the batteries causes a general depletion over time in how fully you can safely charge them.
This story is from the June 2023 edition of Macworld.
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This story is from the June 2023 edition of Macworld.
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