Will a degraded battery reduce CPU performance?
I have seen a few YT videos and user comments say that a reduced battery capacity affects CPU performance.
A user reported that with a capacity of 60 - 70%, the CPU performance was noticeably lower, he ran tests, and it showed that it definitely was much slower, and that test was run while plugged in. He later ran tests with other Macbooks though it showed that the old battery and the new battery were in the same range of performance. He did say it might be because he wore down the first MacBook battery so much that's why a new battery made the processing power significantly faster.
But my question is, How degraded can a battery get before it starts to affect CPU performance?
My current battery is at around 82% capacity with a "normal" status and 1275 cycles.
But does a battery have to be very weak before it actually starts to degrade CPU performance?
And will it make a difference whether plugged in or not? I'm guessing not because the tests that one guy ran was while plugged in, though I want to know more info about this.