Return-Path: Received: from m3.boston.juno.com ([63.211.172.66]) by ns1.olsusa.com (Post.Office MTA v3.5.3 release 223 ID# 0-64832U3500L350S0V35) with ESMTP id com for ; Thu, 20 Jul 2000 01:02:16 -0400 Received: from cookie.juno.com by cookie.juno.com for <"7LRIubhLn1VLcKB8GrXnbRmJuVgqJzshvCSlWuA8pjtK81BWY+He7+YHZF4fT9lO"> Received: (from earl_schroeder@juno.com) by m3.boston.juno.com (queuemail) id FDD7H6DH; Thu, 20 Jul 2000 01:07:27 EDT To: lancair.list@olsusa.com Date: Wed, 19 Jul 2000 22:58:29 -0700 Subject: Fw: Diode Voltage Drop Message-ID: <20000720.001140.-3947373.0.Earl_Schroeder@juno.com> From: earl_schroeder@juno.com X-Mailing-List: lancair.list@olsusa.com Reply-To: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Like Bob Jude, I'm having trouble 'restraining' myself after reading about the two batteries in parallel and the diodes being used to isolate them. As an old electronic tech and a student of Bob Nuckols, I think we should forget about the diode idea in favor of an accurate low voltage indicator and then use a simple switch to separate the two batteries. The low voltage is set to indicate when the alternator drops off line which is the only time we need the batteries while in cruise. Of course, we should use the same type battery in each case requiring the same charging voltage. If this approach is of interest, check http://www.aeroelectric.com/articles.html where you will find complete descriptions and wiring diagrams supplied by Bob Nuckols. Equally important in this discussion is using a battery testing device which is also described at this site. A battery with little capacity left is just a hunk of lead we carry along needlessly. This all fits into the discussion of 'all electric' vs vacuum/electric we struggle with financially.. or at least I do. Earl >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML website: http://www.olsusa.com/Users/Mkaye/maillist.html LML Builders' Bookstore: http://www.buildersbooks.com/lancair Please send your photos and drawings to marvkaye@olsusa.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>