If you like me, when there is a button, I will put in every possible combination to see what I can get it to do, but I honestly essential expecting this to happen. When you first click the button on the P4 battery it shows the battery level, but what if you hold it instead of push it, it dosent turn on the battery but rather led 4 ( the closest to the button ) and the button flash. Never ever seen my battery do this and even on DJIs Phantom 4 battery wiki, there is nothing at all about this. If anyone knows what this means it would be super helpful to know. Thanks