Hi Peter, Would you be prepared to tell us all what that 3.5 years of lead cost? Be honest, now!
MW On 2 Oct 2013, at 16:10, SLPinfo.org wrote: > Sam, > > The range would be quite different because 6 volt batts have greater > Amp-Hour (AH) capacity than 12 volt. Typical 6v golf cart batts hold > 200-220 AH while most 12v batts only hold 100-120 AH. > > Using the 144V system in your example, here's the difference: > > (6 volt) 144 volts X 210 AH X 0.8 (max discharge) X 0.57 (correction for > Peukert effect) = 13,789 useable watt hours > > (12 volt) 144 volts X 110 AH X 0.8 (max discharge) X 0.57 (correction for > Peukert effect) = 7223 useable watt hours > > If we assume you'd use 350 Watt Hrs per mile (varies depending on the > vehicle) you'd get about 39 miles range with the 6 volt batts and only 21 > miles range with the 12 volt batts. > > Another crucial factor is that 12 Volt batts (no matter what the salesmen > tell you) just are not up to the task of an EV. They will die on you > quickly. I tried two different sets and both only lasted about 9 months. > > btw - you could also consider 8 volt golf cart batteries (that's what I > did) which would hold 150-180 AH. They are sort of a compromise between > the two and would get you range somewhere in the middle. They wouldn't > last quite as long as the 6 volts, but mean less weight to carry around. > > Also my 8v batts have gone about 2 years now and are just about ready to be > replaced. I'm told that 6 volt batts typically go 3 1/2 to 4 years. > > - Peter Flipsen Jr > > > > > On Wed, Oct 2, 2013 at 7:33 AM, Sam Shepherd <[email protected]> wrote: > >> In the same auto what would be the difference in range between 6 volt and >> 12 voltlead acid? >> Like 24 6 volt next to 12 12 volt? >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: < >> http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20131002/2e8ad7be/attachment.htm >>> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20131003/6d915057/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)
