Hi Jay,
Been awhile. Pretty weird times. Really nice to be off the grid, I think you would agree! The answer to your question is you don't know if it is accurate. I would call the tweaking of the numbers programmed into Flexnet or the Schneider bat mon :"for indication only" You can observe it and just tweek/compare to the battery internal Soc. The external monitor will have to have the shunt and all the other stuff that makes it a PITA. It does get basic Soc data and battery temp out to Optics and Insight2. Simply Phi had a nice paper on how to tweek/set Schneider and Outback bat mons. I have used that. The good news is that LFP is pretty stable (over time) and would not have the error stacking up like LA does in Soc. What happened to your friend with needing Insight2 advice? He probably figured it out as it is not that hard Dave Angelini Offgrid Solar "we go where powerlines don't" http://members.sti.net/offgridsolar/ e-mail offgridso...@sti.net text 209 813 0060 On Sat, 21 Mar 2020 10:08:32 -0700, Jay wrote: > Hi Dave, > > How do you know that the OB FNDC is correct vs the internal BMS? > > Jay > > Peltz Power. > > >> On Mar 21, 2020, at 10:02 AM, penobscotso...@midmaine.com wrote: >> >> Fortress EVaults have their own lcd screen with Soc, but Dave is right, >> it's not as accurate on RE Optics. We do get a battery reading without >> any >> add-ons, they are just usually off up to 10% from each other. >>> >>> >>> Hi David, >>> >>> They all work but none of them can get Soc and a few other >>> things out to Optics unless you add an external Outback Battery monitor. >>> Outback has said they plan to have their own Lithium battery out in the >>> Fall. >>> >>> Dave Angelini Offgrid Solar >>> "we go where powerlines >>> don't" >>> http://members.sti.net/offgridsolar/ [1] >>> e-mail offgridso...@sti.net >>> [2] >>> text 209 813 0060 >>> >>> On Fri, 20 Mar 2020 12:59:51 -0700, David Katz >>> wrote: Hello Wrenches, I am working with some people that want to use >>> a >>> 20 kw-hour to 30 kw-hour 48 volt lithium-ion battery with an Outback >>> Radian >>> and Outback FM charge controllers. They are considering using Discover, >>> Blue-Ion, Battle Born or SimpliPhi batteries. Does any one have any >>> recommendations of which battery functions best with the Outback system. >>> Thanks, David Katz >>> >>> Links: >>> ------ >>> [1] >>> http://members.sti.net/offgridsolar/ >>> [2] mailto:offgridso...@sti.net >>> _______________________________________________ >>> List sponsored by Redwood Alliance >>> >>> List Address: RE-wrenches@lists.re-wrenches.org >>> >>> Change listserver email address & settings: >>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>> >>> List-Archive: >>> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >>> >>> List rules & etiquette: >>> www.re-wrenches.org/etiquette.htm >>> >>> Check out or update participant bios: >>> www.members.re-wrenches.org >>> >>> >> >> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org
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