CommonByte Quad Charger Charging Dock Station + 4 Rechargeable Battery For Nintendo Wii Keep enjoying your gaming on the NINTENDO WII without considering be out of battery power with this 4 Port Charge Station Includes 4 battery packs specifically designed to replace the original ones inside your remotes The charging dock conveniently plugs into any standard USB Port, allowing for rapid recharging of all four batteries simultaneously Smart LED indicator shows charging status Power source: recommend charging through USB ports from the Wii console