The Nikon MH-31 Battery Charger is designed to recharge a Nikon EN-EL24 Rechargeable Lithium-Ion Battery Pack, which powers the Nikon 1 J5 Mirrorless Digital Camera. This charger's 2-prong US plug goes directly into a wall outlet, so no power cord is required. It can operate with 100-240 VAC power for worldwide use.