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Date:         Sun, 11 Apr 2010 13:23:30 -0600
Reply-To:     miguel pacheco <mundopacheco@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         miguel pacheco <mundopacheco@GMAIL.COM>
Subject:      Re: 91 Camper - Factory Default Aux battery install help
Comments: To: mark drillock <mdrillock@cox.net>
In-Reply-To:  <4BC21AF3.4090206@cox.net>
Content-Type: text/plain; charset=UTF-8

Mark, yup, a big wire from the main battery was the plan. Thanks! Miguel

I have not failed. I've just found 10,000 ways that won't work. - Thomas A. Edison

On Sun, Apr 11, 2010 at 12:54 PM, mark drillock <mdrillock@cox.net> wrote: > Either way works for the blue wire relay trigger hookup with 2 small relays. > I prefer to let the blue wire control just the stock relay and then use the > output of that relay to trigger the second one because I often use larger > sizes of second relay. The stock fridge and aux battery relays are a small > type that draw very little current from the blue trigger wire but bigger > relays draw a lot more from it than was intended. > > The main aux battery issue is where the charging power for the aux battery > will come from. Using the existing 12 volt power wire to the fridge relay to > also charge an aux battery just does not work well. It can work to keep a > charge on it until you camp for a while but once you drain the aux battery > that shared power wire won't charge it back up in a reasonable time, > particularly if the fridge is also running and/or the headlights are on. You > need a separate power wire from the main battery to the aux battery relay to > re-charge a drained aux battery consistently. > > Mark > > > miguel pacheco wrote: >> >> That bit about the factory relay being wired to the fuse panel makes >> sense to me Mark. So this second relay would get it's signal from >> terminal 87 on the factory relay? Or could the blue wire energize two >> relays or is it too weak? >> Miguel >> >> I have not failed. I've just found 10,000 ways that won't work. >>   - Thomas A. Edison >> >> >> >


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