Iphone battery charging with other gear
Not clear who and what smoked in your question.

I presume the ezig charger got fried since it was overloaded.

A word to the specs:

5 volt is 5 volt,however the problem could be the current.

The iPhone will take as much as it gets up to 1 Amp.



If your ezig charger did not have a current limiter (like the USB on you Mac have) then it got overloaded.

Since you continued charging the iPhone using the Mac USB, you might be OK.