I saved this old e-mail from Peter, because it really honed in on what the Peukert Effect does to the range of your EV. See Below.
Hit it right on the money for my 65 Datsun and its 156V pack of 65Ah Odyssey AGM's. I'm thinking of replacing them with (50) CA180FI, 180ah CALB LiFePo4 Cells. Question I have is the Peukert Effect on these Lithium Cells. I've heard they're much better that Lead Acid, or AGM's, but does anyone know the approx. adjustment % Thanks; Dennis 950 lbs. of what kind of lead? AGMs don't like to go below 50% Floodies can tolerate 80% as can Gels. 12V, 8V, or 6V batts? How many? How many AH are they rated for (20 Hr value)? Here's a calculation method I've found that seems to match well to what I get for range (can't remember where I found it): (Total pack voltage X AH rating of each battery) = watt-hours (whr) stored whr stored X 0.57 (adjustment for Peukert effect) X 0.80 (useable DOD for floodies or Gels) = usable whr useable whr divided by watt-hours per mile used (conservative value = 300-350; not sure how aerodynamic the Nash is) = range in miles Peter Flipsen Jr Thanks; Dennis Elsberry, MO http://www.evalbum.com/1366 http://www.evalbum.com/3715<http://www.evalbum.com/1366> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20130515/db06612c/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
