One reason I posted this question was because I was shocked to discover that the 5400 battery only ran for about 2 hours with both viewfinder and LCD on.
I haven’t managed to turn off the viewfinder while the LCD is on and don’t know how.
I am not familiar with the DVXuser batteries. What are they? What do they cost? How long do they run?
Panasonic told me the 5400 is the largest they make for this camera.