Gomadic Double Wall AC Home Charger suitable for the Nikon Coolpix S4000 - Charge up to 2 devices at the same time with TipExchange Technology
Amazon.com : Nikon Charger Kit EH-68P & UC-E6 Cable for Coolpix Camera S3000 S4000 S6000 S640 S70 S80 S8000 S8100 P100 and Many More : Camera Power Adapters : Electronics
Amazon.com : Nikon EH-31 Coolpix AC Adapter for Coolpix 990 & 995 Digital Cameras : Camera Power Adapters : Electronics
En-el24 Enel24 En El24 Rechargeable Li-ion Batteries / Mh-31 Replacement Charger For Nikon 1 J5, Dl18-50, Dl24-85 Digital Camera - Digital Batteries - AliExpress