Is it safe to charge a 2020 macbook pro 13' (that comes with 61W charger) using a 45W power bank?
(45w 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/2.25A)
I understand that it will be slower and may continue to deplete if I use it while charging with a 45W, but are there any other repercussions?
MacBook Pro 13″, macOS 11.6
Is it safe to charge a 2020 macbook pro 13' (that comes with 61W charger) using a 45W power bank?
Yes.
Excerpted from Find the right power adapter and cable for your Mac notebook:
"If your Mac uses USB-C to charge, you can charge your Mac notebook with any USB-C power adapter or display."
... are there any other repercussions?
No.
Is it safe to charge a 2020 macbook pro 13' (that comes with 61W charger) using a 45W power bank?
Yes.
Excerpted from Find the right power adapter and cable for your Mac notebook:
"If your Mac uses USB-C to charge, you can charge your Mac notebook with any USB-C power adapter or display."
... are there any other repercussions?
No.
That can only possibly work if your power bank supports USB-C Power Delivery protocol.
Simply asserting a charging voltage against one of the interface(s) will NOT successfully charge your MacBook Pro.
An external power supply that provides "USB Power Delivery" (like certain displays) must negotiate over the USB cable using USB Power Delivery Protocol, and can not 'force itself' on your Mac. The Voltage and Current are delivered only after your Mac requests and the charger agrees to supply power under certain controlled conditions. The computer is in control of the entire process.
Is it safe to charge a MacBook Pro 13' 2020(A2289) with a 45W power bank?
