I had a situation with a Sonnon system where the controller missed it's turn off point and discharged the batteries until there was not enough voltage to keep the BMS running. I jury rigged two 300W panels in parallel and charged the batteries directly until they turned on the BMS.
On Thu, Aug 10, 2017 at 2:06 PM, Starlight Solar Power Systems < [email protected]> wrote: > Jay, > > After LVD, with Relion, LiFeBlue and the new Elite PS ABC-CPU, the BMS > will keep the battery off until you begin to charge. The battery will > automatically come back online. > > Larry > > > On Aug 10, 2017, at 7:43 AM, Jay <[email protected]> wrote: > > Hi Dave, > > This is wonderful info. > And it leads into the what happens when it reaches LVD? > Given that it is using almost 10% per day of battery capacity for the BMS, > what happens when the charging source for whatever reason shuts down. ( CC > dies while people are gone for a few days for one example) > The BMS turns off the loads, but what turns off the BMS and how do you > turn it back on when it happens? > > Thx > > Jay > Peltz power > > > > > On Aug 9, 2017, at 6:21 PM, Dave Angelini Offgrid Solar < > [email protected]> wrote: > > > > FYI, the LG Chem RESU10 consumes about 40 watts or less with the XW+ main > > breaker off. > > > > > > > >> Hi Jay and Dave, > >> > >> LiFeBlue battery has a wireless Bluetooth monitor that is connected to > the > >> BMS in each battery. SoC, current, cycle life, voltage, health, battery > >> faults and more is provided on the free IOS or Android App. Up to 62kWh > at > >> 48 volts available today. > >> > >> http://www.lifebluebattery.com/the-smartest-lithium-battery/index.html > >> > >> Larry > >> > >> > >> On Aug 4, 2017, at 5:05 PM, Jay <[email protected]> wrote: > >> > >> Yes true. I haven't found the perfect off grid lithium battery. But > until > >> the prices come down, I become a better sales person, or I get rich > >> clients not a big problem for me. > >> You will have to use external % meter, but been doing that for long > time. > >> > >> Sure good comm would be better, however one of the questions no one > seems > >> to have an answer for is energy consumption for the BMS, any BMS. > >> > >> On a different note, how does the LG or PW deal with dark start? If it > >> shuts down due to low voltage, how do you get it started again? > >> > >> Jay > >> > >> > >> > >> > >> > >> > >>> On Aug 4, 2017, at 4:26 PM, Dave Angelini Offgrid Solar > >>> <[email protected]> wrote: > >>> > >>> Jay, > >>> > >>> Without battery BMS data for Soc how does one know? I assume you need > an > >>> external shunt and an energy monitor? Any guidance from the > >>> manufacturer? > >>> > >>> One of the nice things about the LG resu 10 is the data is all there > and > >>> it stays very accurate even on a week with never finishing charge to > >>> 100%. > >>> > >>> > >>> Dave Angelini Offgrid Solar > >>> "we go where powerlines don't" > >>> http://members.sti.net/offgridsolar/ > >>> e-mail [email protected] > >>> text 209 813 0060 > >> > >> ________________________ > > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: http://www.mail-archive.com/[email protected]. > org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > > > > > Thank you, > > Larry Crutcher > Starlight Solar Power Systems > (928) 342-9103 > > > > > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: http://www.mail-archive.com/[email protected]. > org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > -- Chris Mason NABCEP Certified Solar PV Installer™ Solar Design Engineer Generac Generators Industrial technician www.cometsolar.com <http://www.cometenergysystems.com> 264.235.5670 869.662.5670 Skype: netconcepts
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