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A comment on macOS Catalina 10.15.5. Parent comment

Re:macOS Catalina 10.15.5 by jki275 on Wednesday May 27, 2020 @09:13AM (#23322615)
That's the opposite of accurate. Battery life is measured almost exclusively in charge/discharge cycles. More cycles == more reduced battery life.
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Re:macOS Catalina 10.15.5 by randyrand on Wednesday May 27, 2020 @11:57AM (#23325192)
Not true. a battery left 4.2v at over 100F will degrade very fast.

Degradation happens most severely if at high voltage and high temperature.

Without high temperature it is completely fine to leave a battery at high voltage.

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