Delete comment from: Ken Shirriff's blog

Ken Shirriff said...

pse: the charger checks for an attached Macbook by looking for a changing resistance. If you attach something else, the resistance won't change in the right way, so the charger won't switch on. You could apply the right resistance with, say, a relay but that would be a bit of effort.

Nov 8, 2016, 9:59:51 AM

Posted to Teardown and exploration of Apple's Magsafe connector