1
vote
0answers
34 views

iPad Air Not Charging on Left USB of Retina MBP '15

I am trying to charge my iPad Air via the USB ports on my '15 Retina Macbook Pro. When I plug it into the port on the right side of the device, it charges fine, but when I plug it into the left-side ...
1
vote
1answer
193 views

Can an underpowered charger actually help my Macbook battery's longevity?

I have just upgraded from a Macbook Air (Late 2012) to a Macbook Retina (Late 2013). Now I have a 45W and a 60W charger, both MagSafe 2. Using iStat Menus and Battery Health for monitoring voltages ...
0
votes
1answer
542 views

My MagSafe to MagSafe 2 converter becomes extremely hot. Why?

Out of nothing, my MagSafe to MagSafe2 converter became extremely hot while charging. So hot, I could not even touch it. What could cause it? I've been using it so I can leave multiple old 85W ...
0
votes
2answers
45 views

What counts as a partial charge for my rMBP?

I just recently decided to switch over to the Mac for the first time by buying the latest Retina MBP (which shipped with Mavericks). I use it like a commuter where I have it unplugged for a couple of ...
2
votes
2answers
5k views

Retina macbook max USB power output

Could someone tell me how much Ampere the retina macbook pro can deliver over usb. I thought that one should be able to charge an ipad with a retina macbook which would mean, that it should be about ...
3
votes
2answers
2k views

Battery cycles for rMBP and recharges?

So I got my first Apple laptop, a Retina MacBook Pro. I heard that its best to let the laptop discharge until 0% in order to restart the battery cycle or something like that. However I know that ...