But actually, it turns out that isn't the one I have. I just realized I got one that charges with micro. It was 40 bucks cheaper and I already felt iffy spending 80 bucks for a battery.
I just picked up this one because I needed the extra USB-C wall charger:
https://www.amazon.com/dp/B01MZ61PRW/ref=cm_sw_r_cp_awdb_t1_Vkd2CbTS86QSA
I also have an older version (no USB-C but same power capacity) of the one you linked and run it on a daily basis. It lasted all day through Go Fest last year. Anker makes a great charger.
https://www.amazon.com/gp/product/B01MZ61PRW/ref=oh_aui_detailpage_o07_s01
I've gotten a few charges out of this with my Matebook, but based on other comments here maybe that's just me? The size is just under the max the TSA lets on airplanes too.
Yes Anker makes one on Amazon. The term you are looking for is PD or Power Delivery via USB Type-C. Also you want one that can do 30w. I believe another option is the one Razor makes.
If you can wait, you can get a even better price or the even larger model for less. I got the following for $80 over 6 months ago. It's a great battery and Anker is awesome customer support. Mine stopped charging a few weeks ago and Anker sent a replacement for free with an extra USB-c cable and charger. If you plan to upgrade to a new phone, I would definitely recommend it. This has USB-c and power delivery so it would charge quickly and can charge any usb-c devices very quickly. You could probably spend a lot less and get a quick charge compatible battery bank that supports QC3.
Anker PowerCore+ 26800 PD with 30W Power Delivery Charger, Portable Charger Bundle for MacBook Air / iPad Pro 2018, iPhone XS Max / X / 8, Nexus 5X / 6P, and USB Type-C Laptops with Power Delivery https://www.amazon.com/dp/B01MZ61PRW/ref=cm_sw_r_cp_apa_i_4Ll2CbBEYX5DP