My Nikon D3100 Camera Not want To Work?

I have a Nikon D3100 Camera, This One Year Past Evreything is okey take shoot, recorde video, but Yesturday i take a shot then the camera is battery low, i enter into my house but i forget to put the battery in the charge, so i wweakupe today then this afternoon i want to run the camera but not want to work i put it in tha charge for 30 minute then when i put the battry into the camera i see the green light but the camera not working i put it again for two hours of charger then after that not want to work just the green light on the moment i put the battry into the nikon camera any help please?

Manual says: The camera is powered by an EN-EL14 rechargeable Li-ion battery (supplied). To maximize shooting time, charge the battery in the supplied MH-24 battery charger before use. About 1 hour and 30 minutes are required to fully recharge the battery when no charge remains.

Also says: During Charging Do not move the charger or touch the battery during charging.

Failure to observe this precaution could in very rare instances result in the charger showing that charging is complete when the battery is only partially charged. Remove and reinsert the battery to begin charging again.