---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Mon 07/15/13: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:54 AM - Re: Battery Cap Tester (jonlaury) 2. 09:50 AM - Re: Re: Battery Cap Tester (Robert L. Nuckolls, III) 3. 10:28 AM - Re: Battery Cap Tester (Robert L. Nuckolls, III) ________________________________ Message 1 _____________________________________ Time: 08:54:25 AM PST US Subject: AeroElectric-List: Re: Battery Cap Tester From: "jonlaury" Bob I'll try it again to see if I get something different. Why is it that Odyssey comes up with a 9 amp load @ 12v making 75W? I thought you could take to the bank the relationship of volts, amps and watts. 9 amps x 12v should be 108W in my perfect world. J :? hn Read this topic online here: http://forums.matronics.com/viewtopic.php?p=404714#404714 ________________________________ Message 2 _____________________________________ Time: 09:50:44 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: Battery Cap Tester At 10:53 AM 7/15/2013, you wrote: > >Bob > >I'll try it again to see if I get something different. > >Why is it that Odyssey comes up with a 9 amp load @ 12v making 75W? >I thought you could take to the bank the relationship of volts, amps >and watts. 9 amps x 12v should be 108W in my perfect world. > EXCELLENT QUESTION! I'll try to study it further and see if I can deduce their methodology. Discharging the battery at constant watts and constant amps for a non-linear event will produce some disparity of values . . . but I can't see that it would be that big. Bob . . . ________________________________ Message 3 _____________________________________ Time: 10:28:10 AM PST US From: "Robert L. Nuckolls, III" Subject: AeroElectric-List: Re: Battery Cap Tester Bob I'll try it again to see if I get something different. Why is it that Odyssey comes up with a 9 amp load @ 12v making 75W? I thought you could take to the bank the relationship of volts, amps and watts. 9 amps x 12v should be 108W in my perfect world. Here's an excerpt on PC680 data from another Hawker-Enersys document . . . Emacs! . . . and the companion plot Emacs! This plot is consistent with tabular data and with your test results. I must conclude that the earlier posting was excerpted from erroneous data. The fact remains that your battery seems to be in good shape . . . which still leaves us with questions about the observed self-discharge rate. Bob . . . ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.