Hi!
Does anyone know if charging the 15-inch MBP (Mid-2018) with the 65W adapter instead of the 85W adapter damage the computer?
Let me know.
MacBook Pro (15-inch, 2018), macOS High Sierra (10.13.6), i9 Version!
No harm done, may take a little longer to charge under a heavy load.
You can read more here:
MagSafe Pinout question Grant Bennet-Alder
Aug 27, 2018 9:58 AM in response to macnerd48
The voltages at the power adapter output are unregulated, and circuitry inside the Mac regulates and conditions it to exactly what it wants for its battery charging.
You can always use a power adapter with more capacity with impunity. The computer only draws what it needs and is not "overpowered".
Using a smaller one can cause some issues with powering and running at the same time, and you may see sudden uncontrolled power-down is certain high-stress situations. This is because the computer freely "borrows" from the battery when the power adapter is connected, especially in high-stress situations.
But using a smaller one for overnight charging while powered off should not be an issue -- it will just charge slower.
No harm done, may take a little longer to charge under a heavy load.
You can read more here:
MagSafe Pinout question Grant Bennet-Alder
Aug 27, 2018 9:58 AM in response to macnerd48
The voltages at the power adapter output are unregulated, and circuitry inside the Mac regulates and conditions it to exactly what it wants for its battery charging.
You can always use a power adapter with more capacity with impunity. The computer only draws what it needs and is not "overpowered".
Using a smaller one can cause some issues with powering and running at the same time, and you may see sudden uncontrolled power-down is certain high-stress situations. This is because the computer freely "borrows" from the battery when the power adapter is connected, especially in high-stress situations.
But using a smaller one for overnight charging while powered off should not be an issue -- it will just charge slower.
Will charging with 65W adapter instead of 87W adapter damage the laptop?
