MacBook Pro 14' M3 Pro battery health rapidly decreased

<< I’m seeking advice on what steps I should take. Anyone with similar experiences please advise. >>

Plug it in.

That computer is a battery-CAPABLE device. It is not optimized as a battery-operated device. (It is NOT an iPhone.)

Your computer performs best when connected to AC power, such as the power adapter. It can use the full output of the Power Adapter AND when doing especially challenging work will also freely "borrow" power from the battery. In some cases, even with the power adapter connected, the charged state may decline during very stressful work.

When used only on battery, your computer has no extra cushion of power, and may perform more slowly. However, for ordinary non-stressful tasks this may not be objectionable (possibly not even noticeable.)In general, you should ALWAYS connect a power source when it is possible to do so, and only run on batteries (which could be somewhat slower) when no power sources are at hand. Your Mac maintains optimum battery charge levels under program control, and will NEVER over-charge. Activate Battery Health Management and do not spend another moment of your time thinking about charging.

In general, you should ALWAYS connect a power source when it is possible to do so, and only run on batteries (which could be somewhat slower) when no power sources are at hand. Your Mac maintains optimum battery charge levels under program control, and will NEVER over-charge. Activate Battery Health Management and do not spend another moment of your time thinking about charging.

That blocky device that plugs into the wall is the POWER ADAPTER. I am not trying to be a jerk about terminology, what these boxes do and how they do it is essential for understanding how they all work together. The LEDs in the MagSafe end are controlled by commands from the computer.

The CHARGER is inside the MacBook Pro, and is completely under program control. Your Mac accepts some power when needs to run, and accepts more power when intends to charge its internal battery. A power source like the Power Adapter can not 'force itself' on your MacBook Pro. Only the algorithms inside your Mac can decide when is a good time to charge the battery.

"MacBook Pro 14' M3 Pro battery health rapidly decreased: [...]I had initially considered this reasonable, given the six-month training period and the fact that 95% battery health is acceptable for an AI and software developer like me. [...]Even though it says 'normal,' the battery health is degrading so quickly. If anyone else has dealt with this, please share what you did."

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Mac Battery Health Decreased:

I just installed an update on my 2021 MBP, and its Battery Health degraded 5% to 89% after it installed. My 2018 MBP has 100% Battery Heath, yet has been in use for years. Unfortunately, there is no way to know why, nor when the Battery Health deceased. As for troubleshooting it, if it continues, I plan to contact Apple Support, taking it in for service.

Please refer to Check the condition of your Mac laptop’s battery - Apple Support. If the battery "health" is reported as "normal" then the battery is functioning normally. No action is required.

alexnndrr wrote:

Even though it says “normal,” the battery health is degrading so quickly. If anyone else has dealt with this, please share what you did.

How quickly is it degrading? Express its degradation as a function of percent per unit time. Should we use your recent one percent per week, or the earlier two percent over a period of six months. Or was it five percent? Or...?

If the battery health increased from 94% to 95% next week should that rate be extrapolated over a longer period of time? How long? Because at that rate it will reach 99% in another month. Another month it will be at 104%. And so forth.

Are you beginning to understand now?

This is not inspiring confidence in the AI training models you're developing...