I think you missed the point that he is loking to install a separate battery charger. If the charge is 10 amps or less that wire will work although I would not recoemned that appraoch. Any voltage drop between the battery and charger will slightlty confuse a smart charger and cuase early bulk charge termination. Run new leads direct to the battery. 
 
Dennis
> Date: Fri, 2 Jan 2009 08:03:42 -0800> From: mdrillock@COX.NET> Subject: Re: Wire Gauge Question? battery questions too!> To: vanagon@GERRY.VANAGON.COM> > Wire of 1.5mm is slightly smaller than 14 gauge.> > Trying to use the old fridge wires to charge a battery is a bad idea.> That wire run is too small diameter and too long of a run distance. I'm> not saying it can't work, only that it will charge slowly at best and> sometimes not at all.> > The simplest way is to run wires between the 2 battery boxes, using a> battery relay kit sold various places. A better way is to use a Yandina> 100 or similar product, again running a wire between the battery boxes.> > Mark> > > > Jonce Fancher wrote:> > Hi all> > Ive pulled my Fridge and installed a back wall with 2 shelves to take its place. Im adding a wizard RV power / Charging source as well.> >> > My quesiton is what is the 1.5 in the Bentley for wire size compared to standard gauge wire?> >> > Reason I ask is Ive wired in some lighting and some extra outlets and I want to know if I can use the wires that supplied the Fridge to charge the battery.> > The lugs on the side of the wizard power supply say 2 to 14 Gauge but that is just what size wire will fit in it. If the 1.5 if beefy enough I will just plug into that and> > back feed the battery.> > If not beefy enough what is the easiest / Cleanest way to run a set of wires to the battery. Either to the battery or tap into something under the chassis if it is> > easier. Up for Easy and Clean looking. Dont like to cut up the body that much.> >> > Speaking of Batteries My battery is nearing its life expectancy. Is there a battery that would give me the power and life that I want it to. Dry cell maybe? or other?> >> > Thanks Jonce> >> > Jonce Fancher> >> > 56 Single Cab> > 66 Sunroof Bug> > 66 Variant Squareback> > 66 Porsche 912> > 71 Sunroof Bus> > 84 Vanagon "Godfried" 24k Original Miles> > 85 Vanagon Westi Zetec 2.0L DOHC> > 2003 10 Passenger Sprinter> >> > Fancher's Upholstery Inc. - www.fanchers.com> > Not-A-VW Club - http://mywebpages.comcast.net/jaransont3/notavwclub/> > Buses by the Beach - http://www.busesbythebeach.com/> > Full Moon Bus Club - http://www.fullmoonbusclub.com/news.php> >> >> >