Need Chuwi Mijabook Battery and Charger Models/Specs for Replacement

I bought a Chuwi Mijabook that seems to totally lack any information whatsoever on your site or anywhere in general. Two times the battery of this laptop has become bloated. First time it was replaced under warranty. Second time, no longer under warranty, I want to source it from somewhere else. What are the model numbers and specs of the battery and charger? Thanks.