Amazon.com : Digital Camera Adapter Compatible with Nikon D3100 Digital Camera Adapter Power Supply Connector Kit - Replacement For Nikon EH-5A AC Adapter & Nikon EP-5A Power Supply Connector : Digital Camera
Amazon.com: UltraPro Nikon D3100 Digital Camera Battery Charger (110/220v with Car & EU adapters) - UltraPro Replacement Charger for Nikon MH-24 Charger : Electronics