Wow you are saying it doesn't matter what Nikon labels the things they sell? Personally I prefer knowing what I am buying. By sticking 20 on their supposedly new battery and not explaining it, one has no clue what one is buying. Is it the same battery or not? Nikon please tell us!The same battery works in older cameras. Maybe the rate at which the D500 and D7500 discharge the batteries is different and this is where some extra data is supplied by the new batteries. Maybe the D500 and D7500 queries extra data from the battery and the new ones know how to respond to that, while the older ones fail to respond. So the camera takes no chance and assumes the level is lower than what they ask for.
At any rate, does it matter? If you have the correct battery and your camera is in good shape, it does what it is supposed to do.
JC
Some cameras, some lenses, some computers
And not sure what you mean by a "camera is in good shape", but a camera that goes from two bars to shutting off because of no charge at random, is not a great camera to have. And there seem to be a number of people (not just me) who have been having energy related problems with the D500. You appear to be lucky in having a D500 without problems, however not everyone is so fortunate. So there may be some basis for this "urban legend", at least to some of us.


