I checked compatibility but it does not show.
iPad Pro 12.9-inch Wi-Fi, iOS 11.1, WatchOS 1.0.1 (12S632)
I don't believe so, I'm almost certain Apple recommends it for faster charging, if not officially than via their support team.
This may be of interest: 🙂
iPad Pro - 29W Fast charging tests and 3rd party adapters | MacRumors Forums
Apple stopped promoting the 29W charger and Lightning to USB-3/C cable to promote fast charging of the 12.9 inch iPad Pros.
I want to say they stopped promoting it about six months, or so, after the 1st gen iPad Pro made its introduction.
Maybe because of excessive heat issues with the battery? I am not sure on this.
Normally, the 12.9 iPad Pro will charge to 80% in a little over 4 hours.
For 100% it will take between 5 and 5-1/2 hours.
The fast charging only reduced the 100% charge time to between 3-3-1/2 hours.
I felt it wasn’t worth the extra $80 dollars for this convenience.
Plus, I am not sure of the long term impact on the 12.9 iPad Pro battery.
But, as I stated, Apple is no longer promoting this setup as accessories for the 12.9 inch iPad Pro models, any longer!
I wouldn't risk it!
You paid a lot for the 1st gen iPad Pro. I would just keep using the 12W power adapter.
It will for fast and general charging.
Thanks but will it damage the unit or affect the battery?
Thank you. I purchased it for my new iPhone X on order so was curious about the iPad which is why I asked as it is not listed as an accessory for the new iPad Pro.
Appreciate the help.
Will the new 29w adapter work with the 1st Generation 12.9 inch iPad Pro
