Can I run a MacBook off a 45W MacBook Air PSU?
I notice the voltage of the Air PSU is lower - 14.5V vs. the 16.5V the white MacBook uses.
Will this harm the MacBook Air PSU or the MacBook?
I don't mind if it doesn't charge the battery - I don't even have one for the matter. Just want to diagnose.
There most likely will not be enough current/amperag
MacBook Pros require the 85 watt magsafe to power up without the battery. They will power on with the 65 watt PSU if the battery has 15-20% charge. Then run fine, along with the battery continuing to charge. It would only make sense that the same would hold true for the MacBook and a 45 Watt magsafe.