Dennis, I had to do what Al did when getting my Zivan NG1 and NG3 programmed for my pack. I had them program for 19 cells and then I installed 20 cells. In my case, neither of my chargers could be programmed to turn off after the current dropped to a particular level so I'm stuck with the "equalize charge" phase (which lasts from about 45min to 2 hours before the timer turns off the charger). Neither one had a float charge phase. I did trim the voltage down a bit. Initially I did this with the cover off and a box fan blowing over the controller. As Al said, the guts are LIVE, so do this at your own risk. I did end up drilling two small holes over the voltage and current calibration pots so not I can make adjustments with the case on. I still use an electricians screwdriver to keep safe from live voltages.
I have November 2009 TS-LFP100AHA cells and have found that charging to 3.455V lets them rest at no more than 3.38V after 8-12 hours rest with no load on the cells so if your chargers can't be programmed for the standard charge procedure of CCCV of 3.6V and terminate at 0.05C then just lower the termination voltage accordingly. With my 200Ah pack (2p20s) there is very little energy put in after the charger starts to cut back current so even if you had to pull the plug after that point you won't be leaving much range on the table. HTH, On Fri, Nov 15, 2013 at 5:53 AM, Pestka, Dennis J <[email protected]> wrote: > Al; > > Thanks for the info. I will keep looking into it. > > Dennis > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf > Of [email protected] > Sent: Friday, November 15, 2013 7:27 AM > To: Electric Vehicle Discussion List > Subject: Re: [EVDL] Azure DMOC Not spinning motor. > > Dennis, You can eliminate the float because the 210v charger does just that. > It shuts off and the 216v charger continues to charge till 216v and then > floats. I have used these now for three years and have not had any issues > with the cells. They are really balanced all the time. I have not heard > from anyone besides Jack Recard (sp) to not float the lithium's. I have read > at times of folks that have adjusted the chargers themselves. It seems it > has to be done with the cover off and LIVE. Everything in these chargers are > HOT. So be very careful. I went to a blog on adjusting Zivan chargers and > found the pots for voltage and current I believe. I have not done any > adjusting. You can only go so far. If you let Greg know that is how you > want it he will do that for you. The ending voltage seems to be the issue, > if you only tell him how many cells you have. Most people I have talked to > or read about say the voltage he determines is too high. So they have > started to t ell him they have one less cell than they do. Or add an extra cell to their pack. Much more work than to just tell him one less. Al > > ----- Original Message ----- > > From: "Dennis J Pestka" <[email protected]> > To: "Electric Vehicle Discussion List" <[email protected]> > Sent: Friday, November 15, 2013 5:10:04 AM > Subject: Re: [EVDL] Azure DMOC Not spinning motor. > > Al; > > Thanks for the reply. > The problem I see is the float stage. I've heard that you should not float > these lithium's, but shut down the charger when the current gets to ~ .05C. > Phase 1 should charge to 3.5 - 3.6V, and then Phase 2 should hold the > voltage, and taper the current. Looks like you're right there with the > voltage. > Do you know where your current is at when you switch to the float stage ? > > I have a Zivan NG5, and I may attempt to readjust this myself, if I could > get some guidance. > > Anyone on the list have any experience adjusting these Zivan chargers, and do > you know if you can eliminate the float stage ? > > > Thanks; > Dennis Elsberry, MO > http://www.evalbum.com/1366 > http://evalbum.com/3715 > > > > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf > Of [email protected] > Sent: Friday, November 15, 2013 6:48 AM > To: Electric Vehicle Discussion List > Subject: Re: [EVDL] Azure DMOC Not spinning motor. > > Good morning Dennis, Thanks for the nice words. I sent both the Zivans into > Greg at Zivan. I did not pull any punches and should have told him I had one > less cell than I do. Honesty sometimes gets in the way. For what ever > reason they just won't set them up the way we want. I run them in parallel > and one goes off at 210vdc and the other goes off at 216vdc and does the > float. At the moment I have the 216v charger not working and need to see > why. Hopefully I answered your question. > > On a side note the DKW is for sale. So if you know anyone interested it will > be going on Bring a Trailer in the near future. Al > > ----- Original Message ----- > > From: "Dennis J Pestka" <[email protected]> > To: "Electric Vehicle Discussion List" <[email protected]> > Sent: Friday, November 15, 2013 4:07:39 AM > Subject: Re: [EVDL] Azure DMOC Not spinning motor. > > Al; > > Just checked out your site. > Nice car and a first class restoration and conversion. > Real head turner, and looks like a fun vehicle to drive. > > Can I ask how you got your Zivan to work with the Lithiums ? > > Thanks; > Dennis Elsberry, MO > http://www.evalbum.com/1366 > http://evalbum.com/3715 > > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf > Of [email protected] > Sent: Thursday, November 14, 2013 3:04 PM > To: Electric Vehicle Discussion List > Subject: Re: [EVDL] Azure DMOC Not spinning motor. > > Good afternoon Nathan, That is not exactly true. I am running a 200v system > and works very well. Al www.evalbum.com/2430 > > ----- Original Message ----- > > From: "Nathan Loofbourrow" <[email protected]> > To: "Electric Vehicle Discussion List" <[email protected]> > Sent: Thursday, November 14, 2013 10:48:37 AM > Subject: Re: [EVDL] Azure DMOC Not spinning motor. > > I had this exact problem and discovered that the controller was programmed at > the factory with a 250V minimum voltage. Use the software to lower that for > your 164V pack and see if that solves it. > > (That said, the only folks on evalbum that seem pleased with their Azure > setups seem to be those running at 250V+.) > > n > > _______________________________________________ > 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/20131114/9f9cc773/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) > > > -------------- next part -------------- An HTML attachment was scrubbed... > URL: > <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20131115/1ab3aad9/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) > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20131115/f9147ef5/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) > -- David D. Nelson http://evalbum.com/1328 http://www.levforum.com _______________________________________________ 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)
