The hard part about working on the DP-X1 is taking it apart, which requires pulling the screen off (like a cellphone).
So, it looks like that part of the job is done.
If the battery has a Part Number label, you may be able to find a replacement on the Internet.
Then you'll need some appropriate glue, to reattach the screen to the case.
Already have the tools, I've repaired several phones and tablets over the years, also have the correct screen glue.
I'll look for the battery, but I'm not holding my breath! I'm probably going to have to send it in for replacement.
Thanks for all your suggestions and help guys!
Regards,
Claus