OK, so we know a little about these, The Google Pixel 2 XL was originally prototyped by HTC (who make most of Googles Pixel phones) however in the end Google decided to go with LG for the manufacture of the Pixel 2 XL (something that that later regretted!)
This battery was originally developed for the prototype HTC Google Pixel XL 2, HTC later went on to use this failed Pixel as the HTC U11+ however they redesigned the battery slightly to give it a 3930mAh battery, not the 3830mAh that this battery is.
So, this battery is a battery for a phone that doesnt actually exist.
Manufacturer P/N: 35H00273 / G011B-B
Warranty : N/A (we dont have a phone to test it in :) )
Rated Voltage 3.85v
14.74Wh / 3830mAh
HAZARDOUS GOODS: Li-ion batteries are classed as hazardous items and cant be shipped using many postal services such as Royal Mail. We ship all batteries using an express fully tracked specialist company.