Hi @apcsila
Here's a [https://www.youtube.com/watch?v=E2VBZjX6Lzk|video] that may help.
Take note that the screen is not held down by adhesive but rather it is clipped on instead, so perhaps the best method of removing it is to use some [product|IF145-364|pry tools] (examples only) to remove it from the base. Read the last comment posted below the video about the removal procedure.
As for the battery, searching online for ''Amazon (or Kindle) Scribe 2022'' ''battery'' produces no results for suppliers of the battery, but perhaps you may be able to find a supplier once you have opened the tablet and found the battery model number (printed on the battery) and search for the battery model number instead. It is shown at 3:50 minutes into the video but it is too small and fuzzy (when enlarged) to make out what it says.