Hi there,
My previous Macbook pro 2019 was charging via USB-C from my External Monitor.
It was cool - one cable for external monitor + charging.
Bought new MacBook Pro 2021 M1 Max. Now this laptop is not charging via Monitor (60 watt).
Somebody know the minimal power for charging this machine?
MacBook Pro (2020 and later)
Apple doesn’t publish that info.
And empirically, you already know the answer for your particular combination of hardware.
96 watts is enough for a MacBook Pro 14” or 16” M1 Pro model, and either the 60 watts provided by the monitor isn’t, or the monitor somehow isn’t negotiating the expected Power Delivery information for what it is delivering.
Check for a monitor firmware update here, too.
Officially, this Mac needs 96 watts: About Mac power adapters - Apple Support
…and here is how Apple suggests you: Charge your 14-inch or 16-inch MacBook Pro - Apple Support
Seems some monitors can have other issues with PD support, too:
… https://www.dell.com/community/Monitors/U3818DW-USB-Type-C-power-delivery-problem/td-p/7452974
Apple doesn’t publish that info.
And empirically, you already know the answer for your particular combination of hardware.
96 watts is enough for a MacBook Pro 14” or 16” M1 Pro model, and either the 60 watts provided by the monitor isn’t, or the monitor somehow isn’t negotiating the expected Power Delivery information for what it is delivering.
Check for a monitor firmware update here, too.
Officially, this Mac needs 96 watts: About Mac power adapters - Apple Support
…and here is how Apple suggests you: Charge your 14-inch or 16-inch MacBook Pro - Apple Support
Seems some monitors can have other issues with PD support, too:
… https://www.dell.com/community/Monitors/U3818DW-USB-Type-C-power-delivery-problem/td-p/7452974
My adapter is 100 watt. External monitor making 60 watt.
Maybe this will help you: https://support.apple.com/en-us/HT201700
I don't think minimal wattage is your problem. Less wattage than the OEM charger might charge a bit slower, but it will still charge. I'd suspect your setup is somehow not compatible but that's strictly a guess.
Because it was cool when my laptop was charging via same usb-c cable from the external monitor. One cable is better than two.
OK, those are the specs, but what's your point?
Why not just use the charger supplied and plug it into the Mac's port?
Minimal power for charging MacBook Pro M1 Max via USB-C
