On Nov 5, 2013, at 3:10 PM, Willie2 <[email protected]> wrote: > On 11/05/2013 05:02 PM, Cruisin wrote: >> Hi Corbin, glad your bug is still running. Missed you at the Plug in America >> event in Cupertino this year. I have 30k miles on my 36-180ah CALB cells and >> just lost one. Now down to 35. Brings up a point. Important to always carry >> a HV cable to bypass a bad cell if it should happen as well as LV jumpers >> for the BMS. If I hadn't planned for a event like I had I would have been >> stranded. It appears now that a cell can take a dump at any time without >> warning leaving us stranded. For those who don't use a BMS, watch out. > > I've had several TS cells fail and they seemed to have failed shorted and > caused no trouble other than the expense and inconvenience of replacing > cells. I do carry a jumper. With the spade terminals on miniBMS, I can > usually jump around an alarming module without additional wire.
The elithion BMS is setup to hardware one distributed module to another in series (and a loop from the first to the last, and then to the BMS brain controller). A pic can be seen here: http://elithion.com/1PR0xxxX.php -- IMHO, this makes it hard to remove an individual BMS module and cell once they are all together. I've been replacing some of those with spade connectors..as it makes it easier to remove individual cells without having to cut the wire and re-solder it together. The nice thing about the Elithion BMS is the can bus output; I wrote a display (via an Ardunio) that shows me each cells voltage dynamically: http://www.corbinstreehouse.com/blog/2012/11/bms-display-part-4-graph/ That made it super handy to identify which cell(s) are having trouble. corbin > > I'm a bit more than 40k miles since about 2009 on 45-48 TS-LFP260s. I just > loaned it out so it can continue to accumulate some miles; it has been > sitting since I got my Tesla in April. > _______________________________________________ > 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)
