Just got my battery (the larger 26800mAh one) and it works as expected. To make sure PD works correctly I plugged my brand new GPD Win2, which is known to be pretty picking with charging, even when batteries claim USB PD capability (must supply 12V at 2.0A, or it charges very slowly or not at all).
tjoseph10There is actually no need to register your products for warranty or support purposes with Naztech. The individual products do not carry serial numbers so there is no "tracking" involved as far as registering them for validation purposes.
If you have an issue with any Naztech product you just need to contact support here http://naztech.com/index.php?route=information/contact and provide them with proof of purchase. If you purchased through Massdrop you can find you receipts next to your profile picture in the pull down menu listed under transactions.
That is all you will need to do in order to get full warranty and support from Naztech.