Wife let the laptop slide off of a couple stairs. It seemed to work fine for a while. But, now, when you try to turn it on, the green lights seem to cycle through but they just turn back off before the screen powers up at all.

My hunch is that something about the battery or built in charger is broken which would explain why it continued working until the battery ran out. But, I'm not good with hardware troubleshooting at all so I dont know. Any ideas on whats wrong?

Also, is it worth having repaired? Its a Dell Inspiron about 4 years old.