MacBook Pro 2022 M2 battery issue running on external power..

Adding to the pervious suggestions.

Batteries are considered Consumable Products. Over time it will degrade to a point where it needs to be replaced.

The usage is normal as the capacity will go up and down all the time and never stay always at 100%.

Apple Batteries are rated for 1000 Full Battery Cycles and / or 80% Capacity before needing Evaluation or replacement.

For additional reading on Battery and Apple Computers this link may help. About battery health management in Mac notebooks and especially for the M1 / M2 and Big Sur  & Monterey  and Ventura If battery charging is paused or on hold on your Mac

A feature introduced into Big Sur & Monterey and Ventura was to preserve the number of Full Battery Cycles - there was an Algorithm coded into the macOS.

It is perfectly Normal for Big Sur , Monterey, Ventura to Pause / Suspend charging the battery beyond 80% and hold it at that level.

One can nudge / over-ride this by clicking the Battery Icon on Desktop Top Bar and allow charging beyond 80%. From observations, it will Pause / Suspend again once reading 90%. Same procedure to over-ride and will charge to 100%

image below from a former M1 MBA that was 18 months old before trading it in for the M2 version of MBA

The M2 Purchased March 2023 has exactly 6 Full Battery Cycles and is showing 99% Battery Capacity

SpongeBlob wrote:

In the extended report that details amongst things battery health, cycles etc.

Sorry for the delay in replying, I was away from my mac for a while.

Does that mean "System Information"?

For comparison, here is what I see - no reference to a percentage of capacity. There a Full Charge Capacity, but I have not found what the initial value for it was, so I cannot compare.

The "State of Charge (%)" is just the current percentage. Is this where you are seeing 93% and not 100%?

If so, this may be due to the battery management system trying to adapt charging to the way the mac is usually used - see "Optimize battery charging" below:

Where are you seeing this 94% capacity?

You are not doing anything wrong, if your battery is really degrading it should be a warranty issue (that said, I really don’t like or understand the attraction to use a mac with such a gorgeous screen in clamshell mode… )