" battery amps would be lower than motor amps at low RPMs" That sounds like nonsense to me, but I don't have the whole circuit in front of me.
Just like water in a pipe - there doesn't suddenly occur less or more electrons or water molecules any where in a closed circuit. Must be a measurement problem. Or there is some means of storing current you have not told us about. Like maybe regeneration that is converting kinetic energy back to electricity. On Sun, Mar 9, 2014 at 1:11 AM, EVDL Administrator <[email protected]> wrote: > So you're saying that you used to see higher currents and better > acceleration at low speeds? Yes? No? > > Bill had some good thoughts. Also, have you checked all the cells under > load, to make sure that each one is doing its part? > > I know nothing about the Kelly controllers except what I read, which is > that > they're not exactly top shelf products. This may not apply, but I remember > the old PMC DCC range of controllers which, if I'm not mistaken, used the > E/C junctions of the bipolar power transistors as shunt resistors for the > current limit. As the transistors aged, their E/C resistance rose, causing > the controller to limit at lower currents (and causing acceleration to > weaken). A few owners tried cranking up the limit control in response. > Not > too surprisingly, they fried the power transistors. > > 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 [email protected] <[email protected]> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20140309/26cd9c9e/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)
