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#2017 macbook pro charger wattage upgrade#
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#2017 macbook pro charger wattage mac#
The LG UltraFine 4K Display provides up to 60W of power over USB-C and can fully power these Mac models using the included USB-C cable: Since these monitors have been officially endorsed by Apple for use with the new MacBooks, I wondered what Apple had to say about using the LG UltraFine 4K with the 15-inch MacBook Pro.Īccording to Apple’s support document on the LG UltraFine 4K Display: The 5K Display delivers 85W of power, but the 4K display only delivers 60W of power, like the 27UD88 that I’ve purchased. When Apple launched the MacBook Pro, they also collaborated with LG to launch two pricey monitors-the LG UltraFine 4K and 5K Display. It turns out though, Apple has given official guidance on using lower wattage USB-C charger to power the 15-inch MBP. Since power delivery is not something that I can disable, I was worried something bad may happen when using the 15-inch MBP with the monitor. However, my wife’s 15-inch MacBook Pro draws up to 85W of power and typically uses a 87W charger. The 27UD88 supplies up to 60W of power, which can power and charge my 29W 12-inch MacBook without issue. The neat thing about USB-C is that it can deliver video, data and even power over a single cable. It is a nice 4K monitor that comes with USB-C connectivity. This assumes you know the voltage that you are pull out. Put another way if you load Battery Doctor and see you are drawing 18 watts then you will have roughly 76/184 hours of life. The new MacBook Pro 2016 has a 76 Watt-hour battery. However, when it comes to USB-C, is there any difference? I recently got hold of the LG 27UD88. Watt Hours which means for how many hours can they supply 1 watt of power. using a 87W charger to charge a MacBook 12-inch that typically draws 29W), but not the other way around. Ask ten Apple Geniuses and you will get ten different answers.Ĭonventionally, it is OK to use a higher wattage charger to power a device that draws a lower wattage (e.g.
The trouble is that there is little authoritative guidance from Apple. Some people claim it will fry your charger, others say it will fry your device.
There is a lot of uncertainty when it comes to using a lower wattage charger to power or charge devices that draws a higher wattage.
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