The isolation transformers that Bob is talking about are fairly common on most RVs and motorhomes. They run 2 batteries, one of which will drive the 12V internal components like spot lights and whatever, while the other is saved to restart the vehicle. If you are planning running a lot of electrical items and use two batteries this would be a great way of doing it. Just find your local RV service center for parts. Jeff #10544 On Mon, 01 Nov 2004 18:03:26 -0600, Videobob Moseley <videobob@xxxxxxxxxxx> wrote: > > >... they put in two batterys except one is on an isolation > transformer that has all the > electronics hooked up to it. > Both batteries will charge when the car is running, but only one battery > will run down > from the electronics, this way the car will always start even if the other > battery is dead. > To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/