The main reason for the warning to connect the positive lead first is to prevent a spark at the battery vents causing a possible battery explosion [MOD NOTE assuming you make the negative connection to somewhere other than the battery] As we all know this is not a problem in the DeLorean because the jump start post is isolated from the battery. DMC Joe "We're here to help you" DMC Help / De Lorean Services / <dmchelp@xxxx> Web Site: <http://www.deloreanservices.com"> DeLorean services.com DMC.tv is in your future ..... ----- Original Message ----- From: David Swingle To: dmcnews@xxxxxxxxxxxxxxx Sent: Friday, June 08, 2001 3:24 PM Subject: Re: [DML] Jump starting I've got to jump in on this one. I can't understand what electrical engineering principle could possibly impact the requirement to connect the positive or the negative first, with respect to inrush surges as the connection is made. It's a single circuit. Current flow and resulting voltage sags/surges take a complete circuit, and will