I forgot my power supply today, but I have an older powered thunderbolt (2?) display and drives. Can I plug the thunderbolt out from my display into my thunderbolt to USB-C adapter somehow to charge my laptop? The connections I set up now don't seem to be doing anything.

Please hurry ;^) 19% and dropping.... 18%...!


Thunderbolt 1 and 2 do not support power delivery. You won't be able to charge your device from the Thunderbolt cable on your display or drives.

Thunderbolt 3 implemented the USB-C power delivery specification.

By virtue of being an Alternate Mode of USB Type-C, Thunderbolt 3 ports implement USB Power Delivery, allowing the ports to source or sink up to 100 watts of power...

  • Darn. I thought V2 could deliver power. And from what I read, trying to charge from older USB is a bad idea. Stuck working from the iPad today. – beroe Jan 9 '17 at 20:08

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