Hello,

It’s been awhile since we’ve updated our blog page. Let’s just say we’re working on some new stuff. But we’ll leave that for later.

What I wanted to cover today is that I’ve noticed that their have been a good amount of emails to us asking us if it is possible to convert and USB device, (weather it be a USB charger, USB Port or battery) to charge the Macbook Air.

Short answer is it can NOT be done. The USB port is only 5Vdc and at best 2.1 Amps. That translates to only 10w. The Macbook Air is 45W. It’s like trying to put a motorcycle engine in a Car. It’s simply too weak no matter how much up converting you try throwing at it. The reason why we can up convert car power say 12v to 16v~18V for the Macbook Pro is because you have a big engine behind it, that’s only running at idle. There is plenty of power where the “engine” can step up so that converting from 12 to 16v is not a problem.

That’s why batteries are so much more expensive for the larger item it runs, it needs the extra “power” so that it’ll be able to support the drain.

Keep those emails coming,
Mike