If you're talking about a system with a big 12V battery and a high-amperage DC/DC, consider replacing the battery with another DC/DC. Parallel the two and isolate them with diodes.
Done right, you should have the redundancy you need, enough current to handle inductive spikes from motors turning on and save a lot of weight and space that can be devoted to traction batteries. It might cost more than a lead-acid battery, but a system like this should outlast many batteries. Chris On Fri, Aug 22, 2014 at 1:17 AM, Buddy Mills via EV <ev@lists.evdl.org> wrote: > I am replacing my auxiliary battery(ies)for my 12 volt system. Presently I > have two group 31 Deka 8G31 (70lbs each) over the front bumper. They were > left over from my old lead days before I converted to Lithium and fit the > spot at the time. My question is "What plays better with the DC to DC > converter. Gel? AGM? or just an old fashion lead auto battery? I need > something with some ump so that I can run my 12vdc to 120vac converter (it > runs my heaters). So just a small 12v will not cut it. I also like to > trickle charge it with a small charger while plugged in and charging the > Traction Pack. Any suggestions. > > Thanks, > > Buddy Mills > buddymi...@cox.net > > Look mom, no gas. http://www.evalbum.com/2887 > > Disclaimer: No animals were harmed or killed in the process of writing > this > email. Any stories to the contrary are, for the most part, either > fictional > or greatly exaggerated. > > > > > _______________________________________________ > 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/20140822/36e9b9e8/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)
