Return-Path: Received: from smtp810.mail.sc5.yahoo.com ([66.163.170.80] verified) by logan.com (CommuniGate Pro SMTP 4.3c1) with SMTP id 741815 for flyrotary@lancaironline.net; Wed, 16 Feb 2005 14:32:28 -0500 Received-SPF: none receiver=logan.com; client-ip=66.163.170.80; envelope-from=dcarter@datarecall.net Received: from unknown (HELO Davidscmptr) (dcarter11@sbcglobal.net@64.219.115.122 with login) by smtp810.mail.sc5.yahoo.com with SMTP; 16 Feb 2005 19:31:43 -0000 Message-ID: <12f401c5145e$25885460$6401a8c0@Davidscmptr> Reply-To: "David Carter" From: "David Carter" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Battery voltage (was: Racetech RV6A Forced Landing) Date: Wed, 16 Feb 2005 13:31:43 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1437 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 Here's the entire e-mail from Bill for those who may not have saved it or seen it. David - - - - - - - - - - - - - - - - - - - - - - --> RV-List message posted by: Bill Dube At 09:58 AM 3/3/2003, you wrote: >--> RV-List message posted by: "James E. Clark" The SVR batteries I mentioned on the list awhile back are superior to both the Odyssey and the Panasonic batteries in cranking ability. http://www.svrbatteries.com/download.html# Model Cold Cranking Amps Amp-hrs weight (lbs) Max amps SVR-14 250 CCA 14 11.5 850 SVR-20 300 CCA 18 15 SVR-18 350 CCA 22 17 PC-680 280 CCA 16 14 680 Electric drag racers, like myself, search for batteries that will put out THE most power per pound. The SVR-14 will put out more than 850 amps without sagging below 7 volts. The Battle Bot competitors use this brand of battery too. You can get them at a very reasonable price from . They are cheaper, from this source, than the PC-680. The CCA test is based on delivering the CCA at zero F for 30 seconds without sagging below 7.2 volts. In reality, a healthy engine takes less than 5 seconds to start, even in cold weather. If you think about it, the "pulse" amps are more important than the CCA because if you can deliver higher voltage in the beginning, you don't need to crank the engine for very long. With a given starter amperage load, the SVR-14 is going to deliver more voltage, will thus spin the starter faster and start it quicker than the PC-680. If anyone in the Denver area would like to try out an SVR-14, I'd be happy to lend them one for a comparison test, as long as I get it back. _ /| Bill "Wisenheimer" Dube' \'o.O' =(___) U Check out the bike -> http://www.KillaCycle.com