My MacBook draws power when shut down. It is connected to a USB-C hub.

scaldcat Said:

"My MacBook draws power when shut down. It is connected to a USB-C hub. Is this normal?: Wait. What? The MacBook Air 2020 is port limited. I need the hub to connect to a LAN and USB-A devices."

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Mac Charge:

Are you dining this adapter? (it is nothing of a hub): USB-C to USB Adapter - Apple

If your battery is draining then it an issue with a draining battery --not on the adapter. So, read the following...

roubleshooting a Draining Mac Battery:

About Getting this Serviced:

Who performed the service? If it was not an AASP (Apple Authorized Service Provider), they may not perform this service.

Some Steps you can take, yourself...

Try a New Charger:

If it is charing from an external device, then use a new charger:

• Power & Cables - Mac Accessories - Apple - Select "Mac Compatibility" on the left
• Find the right power adapter and cable for your Mac notebook - Apple Support

A Few Links to Refer to Power:

• If your Mac doesn't turn on - Apple Support

• How to turn your Mac on or off - Apple Support

• About Mac notebook batteries - Apple Support

• Charge the MacBook Pro battery - Apple Suppor

• If your Mac battery won't charge - Apple Support

scaldcat Said:

"My MacBook draws power when shut down. It is connected to a USB-C hub. Is this normal?"

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MacBook Power Drain and Hub:

No. This is not normal. So, di not use a USB-C hub. It likely is extracting power for other use.

Simply stated, if the hub does not have any power source it has to get power from somewhere. so it gets it from the MacBook Air.