3 ms·
It is my understanding that what you describe is not how charging works nowadays. For example, the new 15W MagSafe charger doesn't work at 15W if you plug it in
by totalZero 6y ago
It is my understanding that what you describe is not how charging works nowadays. For example, the new 15W MagSafe charger doesn't work at 15W if you plug it into any old brick. A particular charging profile (voltage and current) must be negotiated between and supported by both the charger and the device.