|Do lights normally come on when you charge it? How do you know it isn't charging? |
If it completely ran out of battery, some devices require you to charge it fully before it turns on. This could take several hours, I suggest leaving it plugged in overnight and see if that helps.
Have you tried a different charger?
Have you tried a different outlet?
Have you tried either a new battery or tried the battery in a different camera?
If a new battery doesn't help, or the old battery does work in a different camera, then it is probably just an internal hardware issue with the camera itself. At that point, your only option would be to RMA it and have Nikon repair/replace it:
I am assuming that your camera has a small led light that normally comes on during charging, and that since it isn't you are assuming that it is not charging. After looking at their support website (see above) it seems like if you connect the charger in the wrong order the light might not come on. Do this:
1. Connect the USB cable and the charger
2. Plug the charger into the wall
3. Plug the USB cable into the camera
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