X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from elasmtp-junco.atl.sa.earthlink.net ([209.86.89.63] verified) by logan.com (CommuniGate Pro SMTP 6.0.5) with ESMTP id 6347652 for lml@lancaironline.net; Tue, 25 Jun 2013 08:28:24 -0400 Received-SPF: none receiver=logan.com; client-ip=209.86.89.63; envelope-from=colyncase@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=W2tjt5LETJUU6PAZtMxAM38Gq7o07Km491ABwdVqxaN4aB3w/DbZKXCrdajAn4Gu; h=Received:Content-Type:Mime-Version:Subject:From:In-Reply-To:Date:Content-Transfer-Encoding:Message-Id:References:To:X-Mailer:X-ELNK-Trace:X-Originating-IP; Received: from [71.181.123.37] (helo=[192.168.1.24]) by elasmtp-junco.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1UrSLZ-0001OG-Fu for lml@lancaironline.net; Tue, 25 Jun 2013 08:27:45 -0400 Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Apple Message framework v1085) Subject: Re: [LML] Re: Odyssey Batteries From: Colyn Case In-Reply-To: Date: Tue, 25 Jun 2013 08:27:44 -0400 Content-Transfer-Encoding: quoted-printable Message-Id: References: To: "Lancair Mailing List" X-Mailer: Apple Mail (2.1085) X-ELNK-Trace: 63d5d3452847f8b1d6dd28457998182d7e972de0d01da9405f5be8ac7ad866677b5746631d3a70d1350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 71.181.123.37 I have Odyssey batteries. They work great in the plane. A key = feature is that they don't tend to sulphate themselves when just sitting = around. However, 2 pairs got fried in a build shop using a standard = auto-charger. They were toasted over night. I can only conclude from = this that they are less tolerant of high charge voltage than flooded = batteries. =20 On Jun 24, 2013, at 8:32 AM, John Barrett wrote: I'll chime in too I guess. Am on my second set of two PC 680s. My system sounds like a clone of = Fred's. It has two separate busses, 70 amp alt on one side normally = operating at about 36 amps and 20 amp B&C on the other bus and it = usually draws about 7 amps during cruise flight. X-tie occurs at = startup, in any bus failure and can be manually selected. Main = difference is mine is controlled automatically by Vertical Power VP 200. The first set of batteries grew tired due to terrible abuse over several = years in build shops, they were recharged most of the time with older = chargers and were drained and recharged so many times, estimating the = number would be impossible. =20 I replaced both a bit over a year ago and now use a battery minder that = is compatible to the extent that both manuals (battery and charger) = reference the other brand and indicate the settings to be used. Early in my flight testing program I had plaguing electrical issues that = would frequently kick the electrical to the E bus and often times would = even fail that. I can't say that necessarily put extra stress on the = batteries, but I don't imagine it was particularly good for any part of = the system. =20 I was doing a lot of charging last year during the time we were trying = to identify and solve the problem. That was prior to acquisition of the = minder but the batteries were never drained or particularly stressed I = don't think. Now the electrical busses are properly balanced so the electrical = performs correctly and the batteries seem to be very happy. I still put = the minder on after I run electrical on the ground or leave it for a = period of time. The batteries take up little space on the fire wall and = since real estate under the cowl is precious, that's good. They are = relatively light weight so there is very little down side to these. I'm = all electric so I should develop a replacement program, but the darn = things are so bulletproof I don't know what the cycle should be. Maybe = one every two years? Anyone have advice about that? The old Odyssey batteries I took out last year are still around. I = tried to charge one of them and it never reached the charged stage in 24 = hours. I've got it on the recondition cycle as of last night and it = will be interesting to see if it recovers. John Barrett Sent from my iPad On Jun 23, 2013, at 4:41 AM, WAYNE F MARSHALL = wrote: >=20 > I love my Odyssey batteries installed in my Legacy. Going strong for 5 = years now. Even if I don't fly for a month because of weather, = maintenance or travel, when I return and crank it is like they are brand = new! > Wayne Marshall > N54KM >=20 >=20 > -- > For archives and unsub = http://mail.lancaironline.net:81/lists/lml/List.html -- For archives and unsub = http://mail.lancaironline.net:81/lists/lml/List.html