I just priced the cost of a replacement set of ten lead-acid RV-type batteries (12 volt) for my VW Van conversion (It is FOR SALE, by the way!). Came to right about $1,800. This is from a local battery supply. Is there a less-costly way to buy these? What is the recommended source these days? (It's been four years and I'm a bit staggered by the increase in cost!)
Thanks, Matthew Parkhouse, RN hobomatt@ aol.com Colorado Springs, CO On 3 Oct 2556 BE, at 08:14, "SLPinfo.org" <[email protected]> wrote: > Martin, > > Since I've never actually used 6 volt batts I am not sure what exactly it > would cost. I'm sure there would be a range depending on brand (which will > influence batt life expectancy as Lee and others have pointed out before). > > For my 8 volt batts (lasting 2 years) I just priced out a set of 15 trojan > t875s for my 120 volt pack at $2040. For the 18 you would need for a 144 > volt pack that would be $2348. > > I imagine you'll want to tell me that with the much longer life of lithium > (and the minimal Peukert effect) that my cost per mile would be noticably > less. I am aware of that but I don't have that kind of cash available. > And I am not prepared to go into debt to get them especially for my truck > which is already almost 17 years old (it's nothing special). > > Fyi - I've done the math and the combination of batt replacement cost and > electric costs for my 8 volters puts me at about break even for a > comparable ICE truck (assuming $3.50 per gallon for gas). That's just fine > by me since I am cutting my carbon footprint in about half. > > Peter > On Oct 3, 2013 12:23 AM, "Martin WINLOW" <[email protected]> wrote: > >> 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) >> >> > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20131003/43e602ea/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) > _______________________________________________ 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)
