> > Hello Vanagon list, I would like to install a deep cycle aux. Battery >under the rear seat of a 1985 Westy. I have read that a battery isolator is >not good,but should use a high amp relay(how high of an amp?). Local RV >store wants $45 for a battery cut-out relay. Anyone know a cheaper >alternative? Could you not use, say a 1970's Ford starter relay? (Cost $6). >Looking at the wiring diagram of a 1986 (Bentley) could you just mount the >relay under seat or in engine compartment, use a short battery cable from >Aux.battery positive to terminal 87 of relay and a 3-4 foot cable ran from >terminal 30 of relay to terminal 30 on the Starter (would be easier than >running the cable to the main battery) Splice into the blue alternator >wire(to dash light) to power relay (term.86) and ground term. 85 of >relay.Thoughts? Suggestions? >Charles Roberts >1985 Westy You can get an X-relay, around 15 amps I think, for < $15. This is a std Bosch part and has all the terminals numbered just as you described. Mine was for a Rabbit, I don't know what year. I didn't wire mine up as you describe though - instead I took a parallel line off the alternator, wired through the relay. Then took a No. 10 wire from the relay up to the aux battery. I spliced into the alternator light wire in order to drive the relay. -rick Rick Gordon Bainbridge Island, WA, USA ------------------------------------- rickgo@halcyon.com http://www.halcyon.com/rickgo/ KC7QEG finger for PGP public key fingerprint -------------------------------------
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