What is the max charge rate of the 2018 iPad Pros?

[iMore Question]

The 2018 iPad Pro can be charged faster than the included 18W charger in the box. However, Apple isn't specific in saying what the max rate it allows. It just says a MacBook charger will "charge it faster". Does anyone know what the maximum rate it allows?

 

[Just_Me_D]

Try checking the ifixit website. They may have the information you seek.