On Tue, Oct 8, 2013 at 10:53 PM, Lee Hart <[email protected]> wrote:
> Kevin Sharpe ZCW wrote: > >> Sorry but I'm not sure why we are discussing "various consumer products" >> on EVDL... I assumed your comments were related to cars... Is that >> incorrect? >> > > I was talking about the lithium cells I can actually buy and (hopefully) > use in my own EVs. I think of them as "commodity" cells because they are > mass produced, and sold even in single-piece quantities to anyone that > asks. Miracle batteries only described in press releases, or only available > to large auto manufacturers don't do me any good. > I simply wanted to point out that people are buying commodity cells based > on cost, and expecting them to perform and last like the carefully selected > and meticulously managed cells in the big auto maker EVs. My testing of > various brands and types of inexpensive cells indicates that this not > likely to work. > > The Chinese large format prismatic cells are a commodity of a sort. I have 4 years and 50,000 miles on a pack of CALB 180AH. I admit I don't have as much instrumentation as I'd like, but it could do 100 miles when new and did 100 miles recently. Again, not very scientific but the voltage drop in cold weather has increased by a volt or two over the years. I suspect that you don't hear about some of the success stories in more mundane vehicles because they "just work". In some cases *better* than the big OEMs manage. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20131022/f1b2f5f6/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)
