Dave, I have a pack like that, 16 cells, 48V. It is heavy and not packed tight as it uses the plastic frames available for these cells. But the threaded holes in the stamped end plates seem to be well made and can take real torque. If they are nickel that explains their high cost. I always assumed they were copper with Ni plating.
Weight, cost, and low energy and pack density are probably cons, but maybe the plastc boxed CALB and TS, etc. are similar? I guess nothing is as dense as the laptop style cells. The small packs I have are not specified well, so I can't compare datasheet items. On Tue, Aug 19, 2014 at 10:35 PM, EVDL Administrator via EV < ev@lists.evdl.org> wrote: > On 19 Aug 2014 at 21:18, Jay Summet via EV wrote: > > > The contact/connection may not be as good as bolt on terminals, but > > for 18650 cells you could probably get away with it without excessive > > force. Flashlights do it all the time... > > Does anyone here have experience with the screw-terminal 38140 cells > offered > by Headway (and perhaps some of their less well known Chinese competitors)? > Their vendors even offer complete kits with hardware for grouping and > linking cells. > > But then you might be falling back into the problems of loosening and > corroding connections, I suppose. > > They also seem to be a bit more expensive per watt-hour than some other > LiFePO4 cells, but that might be because I don't know where to look. > > David Roden - Akron, Ohio, USA > EVDL Administrator > > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > EVDL Information: http://www.evdl.org/help/ > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > Note: mail sent to "evpost" and "etpost" addresses will not > reach me. To send a private message, please obtain my > email address from the webpage http://www.evdl.org/help/ . > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > > > _______________________________________________ > 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) > > -- Put this question to yourself: should I use everyone else to attain happiness, or should I help others gain happiness? *Dalai Lama * Tell me what it is you plan to do With your one wild and precious life? Mary Oliver, "The summer day." To invent, you need a good imagination and a pile of junk. Thomas A. Edison <http://www.brainyquote.com/quotes/quotes/t/thomasaed125362.html> A public-opinion poll is no substitute for thought. *Warren Buffet* Michael E. Ross (919) 550-2430 Land (919) 576-0824 <https://www.google.com/voice/b/0?pli=1#phones> Google Phone (919) 631-1451 Cell (919) 513-0418 Desk michael.e.r...@gmail.com <michael.e.r...@gmail.com> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20140820/5d50948b/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)
