Hello,I have been looking for a charger brick that can replace both my MacBook charging brick and iPhone charging brick. I find myself more often than not having to charge both devices at the same time and I wanted one brick that can charge both at safe power levels. As far as watts and volts, I am not sure what the numbers mean and what I should be looking for. Can someone recommend a charging brick for me? I have seen the anker line of charging bricks and I heard they can be used for both but I am not sure, and well, they are quite expensive. I am not shy from spending money on a good charger, as it should last for years of usage, but I want to make sure I am getting the right thing. Please advise!!!!