How to know when my Nikon #5200 camera needs charging when the little box is always empty?

How do I know when my Nikon #5200 camera needs charging when the little "box" is always empty?

It could be that the circuitry that handles the battery level is broken. Contact Nikon to set up a repair. Until then, always charge the battery after every shoot.

There's a possibility that your battery needs a replacement. If you fully charge a battery and it still does not hold charge, this means your battery life is over and you need to buy a new one.

It is rare that the battery indicator shows low battery when it isn't low. But if the problem still persists, you should visit the Nikon service center.

To get a full charge you need to charge the battery for 1-2hrs out of the camera in the charger provided.

If your indicator show empty then the battery has died and needs replacement.

Are you sure that you are not confusing completely full and completely empty? Keep using the camera until the battery dies - then charge it for 3-4hrs.

Have you been charging by placing the battery in the charger until the indicator on the charger went from blinking to steady?
It is possible that a component is defective if the battery shows charged on the charger, but not charged in the camera.
However, sometimes we see people thinking that connecting the camera to the computer with the USB cord is supposed to be charging the battery, and it doesn't.