How long does a Nikon D5100 battery take to charge (first time)?

I just got the D5100 and I can't wait to use it. It's been charging for about 30 minutes. How long should it take to charge?

You can see it from the handbook but i would recommend charge it up to 8 hrs at least, so basically you can go to sleep then when you wake up you can then play about

Just wait until the light on the charger turns off. Duh…

I had a Nikon D3100 up until about a week ago, and it took about 2 hours to charge when it was totally dead. But your battery does come from Nikon slightly charged, so maybe shorter!
Have fun with your new toy!

Since You "Just Got" the Camera Than Why Haven't You Picked Up and Started Reading the Owners Manual Yet? You Would had Discovered the Answer to the Question Simply By Reading The Owners Manual.

I'll Bet You $20 the Information that You are Looking for Is In the Owners Manual

It's Sitting at the top of Page 14 of the Owners Manual
http://www.nikonusa.com/...oprint.pdf

I agree with "DEAD".
You have a new toy which you can't use just yet. You're itching and thumb twiddling.

Why on earth aren't you using this time to start learning about your camera!

There are many fine reasons why they give us those manuals.

About an hour and 30 minutes.