Does my MacBook Pro (2019, Intel) use battery or charging as energy when charging. There are many different answers on the internet about this, what is the truth? If it gets energy from the socket when charging, does this mean that the battery cycle is not counted. Or is the Macbook actually charging at the same time it is using energy from the battery and it is reflected in the battery cycle?
MacBook Pro 13″
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. 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 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 AC power when it is possible to do so, and only run on batteries (which could be somewhat slower) when no AC sources are at hand. Your Mac will NEVER over-charge.
Portable Macs always draw power from the battery. The battery will charge when the Mac is connected to a power source and the battery needs to be charged.
Is my MacBook Pro uses battery when its plugged?
