I'd look for weak/loose internal control circuitry, especially connected to the K3 contractor or it's drive coil. Grab, pull, twist all connectors and see if the relay responds.
Good luck 🤞 On Mon, Apr 7, 2025, 4:54 PM Maverick Brown via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > What voltages are you using with it for ABS? Are you running open loop? > Does the battery pretend to be Pylontech or some other protocol? > > Maybe the BMS is tripping from high volts, even for a brief period. > > The spec does say maximum of 56V. > > Most all other 16S LiFePO4 can go much higher, in theory to: > > 3.65 max cell voltage = 58.4 > 3.5 vpc is 56V > 3.45 vpc = 55.2V, my favorite sweet spot > 3.4 vpc = 54.4 is preferred by a few vendors. > > Is the Sol-Ark on the internet so you can look at voltage charts? If so, I > can look at it if you want/can share it. > > > Absorb time is another story. > > > Thank you, > > Maverick > > Maverick Brown > Off-Grid Solar Commander since 2006 > Maverick Solar Enterprises, Inc. > • Solar Commander Remote Power > • SunFlow Systems Cathodic Protection > maver...@mavericksolar.com > 512-460-9825 > > > > On Apr 7, 2025, at 5:00 PM, Kevin Pegg via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >  > > Hello Wrenches, > > > > Has anyone seen this before? I’m dealing with a battery bank that keeps > tripping out, opening the K3 contactor, randomly. I can’t find any pattern > nor cause. Voltage is ok, load ok, temperature ok. It could be during the > day under PV charge, or in the evening. The battery bank is paired with a > SolArk 15k. Same behavior if it’s closed loop or open loop voltage-based > control. SolArk tech support said it was not supported in closed loop. GSL > tech support has not been useful and refuses to address the issue at hand. > > > > This is close but not exact model. > > > https://www.gslenergybattery.com/20kwh-wheel-design-solar-energy-storage-battery--2048kwh-lifepo4--modular--scalable--10-year-warranty--ul-certified > > > > I wrote about this same project Dec 2024 was able to recover a frozen and > 18 months abandoned deeply discharged battery bank. Capacity wise, they are > fine. This site is not continually occupied; I just don’t know how to get > it to the point where the system is reliable. Tempting to bypass the K3 > contactor, as it still would have a secondary one for safety. > > > > Kevin Pegg > > EA Energy Alternatives Ltd. > > 37471 Hwy 16 > <https://www.google.com/maps/search/37471+Hwy+16?entry=gmail&source=g> E > > Telkwa, BC V0J 2X2 > > > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > 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 > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > 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 > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > >
_______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org 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 There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
