X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 03 Jan 2010 16:07:49 -0500 Message-ID: X-Original-Return-Path: Received: from elasmtp-curtail.atl.sa.earthlink.net ([209.86.89.64] verified) by logan.com (CommuniGate Pro SMTP 5.3.0) with ESMTP id 4060258 for lml@lancaironline.net; Fri, 01 Jan 2010 15:05:57 -0500 Received-SPF: none receiver=logan.com; client-ip=209.86.89.64; envelope-from=colyncase@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=C3OA/vb3LR4PQVIROAqkjZ3AAW0BlWXwgdfi3GrWrCBRwvI4kr3DDs0zLt4EcUuL; h=Received:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE:X-ELNK-Trace:X-Originating-IP; Received: from [216.57.118.33] (helo=ccaselt3) by elasmtp-curtail.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1NQnkP-0004LP-OU for lml@lancaironline.net; Fri, 01 Jan 2010 15:05:21 -0500 X-Original-Message-ID: <3773F2AA36024357A4E857335680B119@nvidia.com> From: "Colyn Case at earthlink" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] Re: 2 questions X-Original-Date: Fri, 1 Jan 2010 15:05:21 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_065B_01CA8AF3.D6CA5230" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5843 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 X-ELNK-Trace: 63d5d3452847f8b1d6dd28457998182d7e972de0d01da940247f22e36c0fc245c78c29f9ba2cf4e9350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 216.57.118.33 This is a multi-part message in MIME format. ------=_NextPart_000_065B_01CA8AF3.D6CA5230 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable A couple other points on the odyssey battery. 1) Probably everyone knows this but just in case: A std aviation = battery will sulphate if you leave it on the shelf for a year. this = happened to me so at that point I had a choice of buying an expensive = de-sulphating charger or buying odyssey batteries which don't have this = problem. I bought the batteries. 2) the pc680 is called the pc680 because it provides 680 amps for 5 = seconds. Similarly the pc625 provides only 625 amps for 5 seconds. = However, in every other cranking metric: "cranking", "cold cranking", = "hot cranking" the pc625 outperforms the pc680. It also has more = total storage capacity. On my airplane, the cranking situation I'm = most worried about is in the air, trying to get the prop out of feather. = (k. we just had the debate about props and their handling so we don't = need to do that again). I decided cold cranking amps is what I care = about. details are available here: =20 http://www.odysseybatteries.com/files/techbook.pdf ------=_NextPart_000_065B_01CA8AF3.D6CA5230 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

A couple other points on the odyssey=20 battery.

1) Probably everyone knows this but = just in=20 case: A std aviation battery will sulphate if you leave it = on the=20 shelf for a year. this happened to me so at that point = I had a=20 choice of buying an expensive de-sulphating charger or buying odyssey = batteries=20 which don't have this problem. I bought the = batteries.

2) the pc680 is called the pc680 = because it=20 provides 680 amps for 5 seconds. Similarly the pc625 = provides=20 only 625 amps for 5 seconds. However, in every other = cranking=20 metric: "cranking", "cold cranking", "hot cranking" the = pc625=20 outperforms the pc680. It also has more total storage = capacity. =20 On my airplane, the cranking situation I'm most worried about is = in the=20 air, trying to get the prop out of feather. (k. we = just had=20 the debate about props and their handling so we don't need to do that=20 again). I decided cold cranking amps is what I care=20 about.

details are available here: =

http://www.od= ysseybatteries.com/files/techbook.pdf

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