EN-EL19, 25837, Battery for Nikon Coolpix S3100, S4100, S100, W150, Digital 634563540224 | eBay
Genuine Nikon EN-EL19 Li-ion Battery for Coolpix S2500 S3100 S4100 Camera | eBay
Nikon Coolpix S3100 Digital Camera Review | ePHOTOzine
2x Pack - Nikon Coolpix S3100 Battery + Charger with Car & EU Adapters - Replacement for Nikon EN-EL19 Digital Camera Battery and Charger (700mAh, 3.7V, Lithium-Ion) - Walmart.com
2x Pack - Nikon S3100 Battery + Charger - Replacement for Nikon EN-EL19 Digital Camera Battery and Charger (700mAh, 3.7V, Lithium-Ion) - Walmart.com
Amazon.com : EN-EL19 Camera Battery for Nikon Coolpix S3100 S4100 : Digital Camera Batteries : Electronics