http://www.nikonchat.com/s5-coolpix/

How Do You Charge A Nikon CoolPix S5 Battery?
What Does The Charger Look Like?
Did It come with the camera?
The charger came with your camera and looks like a small black box with a place to put the battery and a connector to the AC plug that also came with the camera.
It takes about four hours to charge it the first time.
One of my Nikon charger blinks until the battery is fully charged and the the light just stays on. The other one blinks and then the light shuts off when the battery is fully charged.
A phone number you may want to save: Nikon USA’s free live tech help line, (800) NIKON-UX, is open all the time, 24/7/365
Nikon Coolpix S5 Digital Camera USB Cable A To B for Cameras Cradles – 3′ -