>Subject: [EVDL] Open Circuit Voltage Across Contactors I've got two Anderson contacts on my pack, one on the negative side and one on the positive side. So when the key is out of the ignition, the controller and all other components are separated from the traction pack. I currently have a 120V system, with two strings in parallel, because I have a Curtis controller, which has a 144V max. I would, however, like to be able to charge faster with my PFC-30. So my question is, if I reconfigure the packs to be in series for charging, is there any problem, since both contactors will be open?
Bill> This could be done safely by leaving one pack ( pack A ) hooked up normally then using two Anderson connectors with your charger being the only thing connected to pack B's battery plus ,chargers neg will go to pack A's neg. Pack B will hook to pack A using a 175amp or bigger Anderson disconnect with pack A's pluses going to pack B's plus and A's neg to B's neg , this will be for driving and parallel charging . Pull the disconnect and plug in a Anderson jumper plug which will connect the A packs positive to the B packs negative and now your are charging in series. If you forget to switch back , no big deal you will just be running on pack A . A few ways to set up these Anderson's , I think the 175 amp Anderson would be big enough . I would have one on pack A and 2 and pack B ( one for series and one for parallel ) The series plug will have its b+ plug going to the B packs neg . shameless plug ,, we sell them but there not on the web site Steve Clunn Merging the best of the past with the best of the future. www.Greenshedconversions.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)