Q: Charging European MBP in USA ("step-up" conversion?)
I know MagSafe handles step-down conversion for USA->EU charging, so all you need is an adaptor. That makes sense, since we're removing voltage to bring 220v down to 110v. But how does it work the other way around - charging an EU MBP in USA? In my mind you can't add volts to perform step-up conversion (110 -> 220). Is it just that all MBPs, EU or USA, require the least common denominator of 110v?
Backstory: my MBP is breaking while I'm on vacation, may have to buy a new one in EU. Safe to bring home and charge forevermore?
MacBook Pro with Retina display
Posted on Sep 1, 2016 7:10 AM
Th Apple adapter select by sensing the input voltage. It does not ADD voltage it selects whether to chop up the input voltage (it chops it up if its higher) and does not if it's lower.
The AC adapter is fine for US and EU. You will simply need to correct plug adapter
Posted on Sep 1, 2016 7:40 AM
