The new MacBook Pro 15" comes with an 87W power adaptor, but this monitor only provides "up to 60W". Will the MBPro charge and operate correctly?

The general consensus of people I've talked to recommend against long-term operation of a MacBook Pro with a "less than stock" power supply. That is, people say you can damage a MacBook Pro 15 using the power supply for a MacBook Air, for example.
So can you just plug the USB-C connector from this display into the new MacBook Pro 15 as a single-plug "dock", or do you need to plug in the MacBook Pro's power supply as well?

LG UltraFine 4K Display

LG UltraFine 4K Display

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2 Answers from the Community

  • Best Answer:

    I use it with a 15" MacBook Pro and it charges fine. The only difference is in the time it takes to charge the MacBook if it's discharged when connecting it. There's no reason at all you can't use the lower wattage without damaging your battery. Exactly the same as you can use lower wattage adapters for iPads for example, it just charges slower.

  • It will charge it but just a bit more slowly than the built-in 87W power adapter, much like a 60W adapter would still charge an older generation Retina MacBook Pro that used an 85W adapter. In my experience it's not a huge difference. If you really need the extra juice, you can always plug in the charger on a different port, but you lose the convenience of connecting only the one cable.