http://www.thewheelchairsite.com/blogs/wheelchair_safety/archive/2006/08/02/96302.aspxQuestion: My friend admires my Jazzy electric wheelchair, but he lives in a house built years ago before they wired them with the third wire ground in the electrical wall sockets. He has noticed that the charging wire on my Jazzy has a three-pronged plugenCommunityServer 2.1 SP2 (Build: 61129.2)