Bruce, Thanks. That is the plan to watch it for some time before I trust it for good. Al
----- Original Message ----- From: "Bruce EVangel Parmenter" <[email protected]> To: "Electric Vehicle Discussion List" <[email protected]> Sent: Friday, March 22, 2013 5:19:13 PM Subject: Re: [EVDL] two chargers in parallel > I do not know how to [adjust them] myself That is why I mentioned it. Zivans have to be adjusted correctly. I have the experience of how to do such adjustments, but I do not have the equipment, nor the charger specific knowledge of the proper settings and adjustment procedures to do it myself. It seems like we all have to rely on the factory to adjust them correctly. [EV-history - Way-back when I got my Zivans (circa ~1990's), there was some serious dissing of them as a viable charger because some were received with their settings wrong and their was no way to adjust them. I knew of the Zivan distributor (at the time, Greg), and arranged an appointment to drive up and drop by his shop in Sacramento (160+ miles North). I knew there was some settings that 'had to be right' or I would cook/(under or over-charge) my PbSO4 pack when going on my long journeys using multiple Zivan chargers (at the time, no one else was going on the really long trips like it nor using multiple chargers in parallel either). At the time, there really was no other off-the-shelf smart EV charger options, so if I did not have any problems, then this charger was still a viable option for the EV community to use (I was throwing money and time at the issue for the EV-cause). His shop was interesting. He had a hand-made rig that he used to adjust the settings, and then he went through it again, for a total of three different times, slightly adjusting each time. As a businessman he knew that if we got this right, it would overcome the bad-rep that was being passed around within the EV community (it would help his sales), so I am sure you can imagine I got a little more attention than say someone that had just shipped theirs in a box (face to face had more of an effect). /EV-history off] As it turned out, the chargers worked fine. The only issue was, as the PbOS4 pack aged voltages will (and did change), but that was overcome when the new pack was swapped in (only a few months of watching the charging at the last part of the pack's life). I do not have first hand li-ion pack experience. What I know about li-ion has been taught to me by evdl member's and their experiences. (Corrections requested) from what I have gathered, li-ion pack aging will not be as a serious problem for you as it would be if you were using the PbSO4 pack chemistry. According to your EValbum page http://www.evalbum.com/2430 You are in Edmonds, WA which has similar temperatures to the San Francisco area (Seattle has a large body of water to keep temperatures pleasant). But if you plan to go exploring in areas that have serious temperature changes, I suggest you have some thermal management for your pack (insulate and heat it when it is cold, and keep it cool when it is hot). A lot has changed since those old-days. I am reading on the evdl that drivers that receive their chargers back from being adjusted, have had no problems. But if I were in your shoes/situation, since the adjustment work was not my own, I would recommend that you initially monitor your chargers, so that you know they really do what you asked Zivan to adjust for (that they shut down / off at the correct voltages). You always have to factor in human error, and double check to know all is right/well. {brucedp.150m.com} - On Fri, Mar 22, 2013, at 01:28 PM, [email protected] wrote: > Bruce, I sent charger # 2 to Zivan to do the reprogramming. They did > charger # 1 as well. I do not know how to do this myself. I would be > interested in knowing how. Al - -- http://www.fastmail.fm - Same, same, but different... _______________________________________________ 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/20130323/19cad04e/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)
