7. With MagSafe Phone or Phone Case still in place, tidy everything up and replace the back cover, replace top left screw and bottom right screw.. and Test Charging Function using wall outlet etc. If it consistently charges replace remaining screws and Voila... Enjoy your new Retrofitted MagSafe charger.. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.