This question already has an answer here:
I was try and my macbook can charger with ipad charger (i see output 5.2v-2.4a) with usb A to C convert.
But when i read on my macbook charger, it is have 2 output : 14.5v-2.0a and 5.2v-2.4a
my macbook can charge in 2 mode (both 14.5 and 5.2) or only with 5.2v? if only need 5.2v , why need 14.5v output ?
maybe i use ipad charger on along time, it is what problem ?