Nikon EN-EL12 Rechargeable Li-Ion original (in retail packaging) Battery and DIGI TECH Replacement Wall and Car rapid Battery Charger for Nikon COOLPIX S9100 digital camera Kit includes one original Nikon ENEL12 battery and one home and car charger Nikon Technology: Li-ion 3.7v 1050 mAH The included battery charger is an AC wall and DC car two in one charger.Allows you to charge at home, car, and boat. Its unique flat pin, foldable design allows easy storage and makes it a compact battery charger.