Gomadic Portable External Battery Charging Kit suitable for the Nikon Coolpix S3100 Includes Wall; Car and USB Charge Options
Nikon Coolpix S3100 Replacement AC Power Adapter
USB AC DC Power Adapter Camera Battery Charger + PC Cord For Nikon Coolpix S3100|battery charger|camera battery chargerbatteries battery charger - AliExpress
Usb Ac/dc Wall Power Adapter Camera Battery Charger+pc Cable For Nikon Coolpix S3400 S3300 S3100 S3000 S2750 S2700 S2600 S2550 - Chargers - AliExpress