This is not looking good. The EN battery had a full charge on Feb 4. It is now down to 24%. Only about 40 images taken.
I contacted the maker by email. They responded (in broken English) that it is best to remove the grip from the body when not in use. That seems like excess work. But I'll do it. I like the way the camera handles with the grip.
If Amazon contacts me for a user review, I'll advise prospective buyers.