X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 07 Jan 2008 15:51:16 -0500 Message-ID: X-Original-Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.121] verified) by logan.com (CommuniGate Pro SMTP 5.2c4) with ESMTP id 2634736 for lml@lancaironline.net; Mon, 07 Jan 2008 12:40:44 -0500 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.121; envelope-from=tednoel@cfl.rr.com Received: from tednoel ([68.202.45.158]) by cdptpa-omta05.mail.rr.com with SMTP id <20080107174005.ZMRW26118.cdptpa-omta05.mail.rr.com@tednoel> for ; Mon, 7 Jan 2008 17:40:05 +0000 X-Original-Message-ID: <060b01c85154$577de3f0$0402a8c0@tednoel> From: "Ted Noel" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] Battery tender X-Original-Date: Mon, 7 Jan 2008 12:40:06 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0608_01C8512A.6E70ED70" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 This is a multi-part message in MIME format. ------=_NextPart_000_0608_01C8512A.6E70ED70 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Marv built a simple rig to do exactly that with my Battery Tender and = dual battery system. I bought a cheap plug-in light timer. That drives a = simple relay. The battery tender feeds the common ground and the hot = input for the relay. For 12 hours the Battery Tender looks at one = battery, then for 12 hours the other. It's all stuck in a small plastic = case, and we use a three-prong non-reversible plug. The case, relay, and = plug were about $5 at our local surplus outlet, and the timer was about = $12. The work was more expensive than the parts. Ted Noel ----- Original Message -----=20 From: Jim Scales=20 To: lml@lancaironline.net=20 Sent: Monday, January 07, 2008 12:29 AM Subject: [LML] Battery tender I want to install wiring to my batteries so that a Battery Tender can = keep them topped and ready during cold weather. I have a dual battery 12-volt system with the batteries charged by one = alternator through an isolator. There is a master toggle that allows me = to choose one or the other to be the battery used by the plane at any = particular time. The system works very well. I want to be able to keep both batteries topped without having to = change the tender from one to the other. It would seem that hooking the tender to the center pole (alternator = input post) of the isolator along with the common ground would = accomplish this purpose. However, I do not pretend to have even a = rudimentary understanding of the electrical system, so I would like some = input from the list members as to what would be the proper wiring plan. Thanks, Jim Scales ------=_NextPart_000_0608_01C8512A.6E70ED70 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Marv built a simple rig to do exactly that with = my Battery=20 Tender and dual battery system. I bought a cheap plug-in light timer. = That=20 drives a simple relay. The battery tender feeds the common ground and = the hot=20 input for the relay. For 12 hours the Battery Tender looks at one = battery, then=20 for 12 hours the other. It's all stuck in a small plastic case, and we = use a=20 three-prong non-reversible plug. The case, relay, and plug were about $5 = at our=20 local surplus outlet, and the timer was about $12. The work was more = expensive=20 than the parts.
 
Ted Noel
----- Original Message -----
From:=20 Jim=20 Scales
Sent: Monday, January 07, 2008 = 12:29=20 AM
Subject: [LML] Battery = tender

I want to install wiring to my batteries so that a Battery Tender = can=20 keep them topped and ready during cold weather.
 
I have a dual battery 12-volt system with the batteries charged = by one=20 alternator through an isolator.  There is a master toggle that = allows me=20 to choose one or the other to be the battery used by the plane at any=20 particular time.  The system works very well.
 
I want to be able to keep both batteries topped without having to = change=20 the tender from one to the other.
 
It would seem that hooking the tender to the center pole = (alternator=20 input post) of the isolator along with the common ground would = accomplish this=20 purpose.  However, I do not pretend to have even a rudimentary=20 understanding of the electrical system, so I would like some input = from the=20 list members as to what would be the proper wiring plan.
 
Thanks,
 
Jim Scales
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