Sure, it will be ok to use the lithium battery on your car. I used a 12V lithium battery without bms on a SUV in 2008. It lasted half an year before it failed due to two times of over-discharge (I forgot to close headlamps).
On Fri, Feb 15, 2013 at 1:32 PM, Bruce EVangel Parmenter < [email protected]> wrote: > Ah Ha! That is what I saw in the back of the J.B. Straubel's Porsche > conversion when I followed him using his pusher trailer to his home > (many years ago). The pack just behind the front seats and had little > light dimly lights between the cells. So, that was the BMS he used in > his EV conversion design ... neat! > > ... > OK, no one has posted about one of my queries as to if the prepackaged > 12V Li-ion battery that would drop as a replacement to my dying 12V > group-24 deep cycle. So, I will assume there is no problem trying one. > > > {brucedp.150m.com} > > > > - > On Thu, Feb 14, 2013, at 09:03 PM, Lee Hart wrote: ... > > Back to the original question: How to balance four lithiums in series > > being used as a 12v battery. If you do nothing else, at least put a > > zener diode and light bulb in series across each cell. This will serve > > as a crude BMS. It's a poor regulator; but dirt cheap and better than > > nothing. It will a) bypass at least some of your excess charging > > current, b) tend to equalize the voltage across all four cells, and c) > > give you a visual indication if your voltage is just plain too high. > > > > A 3.9v 5w zener (1N5335) and #PR2 flashlight bulb should be about right. > > The 1N5335 shunts about 25ma at 3.3v, 100ma at 3.6v, 300ma at 3.9v (bulb > > dimly glowing), and 500ma at 4.1v (bulb lit). > - > > -- > http://www.fastmail.fm - Send your email first class > > _______________________________________________ > 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/20130215/2eb9fb35/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)
