Maybe I'm missing something here, but for the golf cars, doesn't the vehicle have some kind of master on-off "ignition switch"? It would be pretty unusual not to. Couldn't you connect that to a relay with its NO contacts in series with the contactor coil, so the contactor would always be open when the "ignition" or key switch is off, even if the BMS wanted it on?
The problem seems different for a portable battery supply. There I guess I'd probably look for a different BMS, one that doesn't insist on controlling the main contactor. But I am not a lithium expert. 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)
