Different models of electric wine openers may have different features and operate differently, but they work very similarly. The charger should be charged for at least 6 to 12 hours. Make sure to check all labels and ensure you have the correct battery if it is a battery-powered opener. Once your opener has charged up or been battery-loaded, use the foil knife to cut off the top of the wine bottles. Next, fit the bottom end of the opener onto that top. It's easy to push down and allow the opener to work. Push and hold down the "down" button until it releases the cork. If your opener is fully automatic you will need to either raise it and allow the opening to extract the cork or you'll have to press the button "up".