I want to buy an iPad charger for in my car. I have one now for my iPhone, but he won't charge my iPad. I know batteries use mAH to denote capacity, so are chargers rated by mAH or some other measure? ...
Can I use one charger for all MacBooks from years 2008 to 2013? ... or did Apple change the charger in the last 5-6 years? A friend of mine has a Macbook from 2007 or 2008 , she can lend it to me but ...