Steve and Jerry, Thanks for the suggestions. I'll have to take a closer look at the battery bank next time I am out there. The solar setup is 4 strings of 3 kyocera 270's into each charge controller. So that is almost 65A @50V coming out of each charge controller for bulk. The parallel battery strings all have the same length of premade cable, so current should be balanced (unless there is a dead cell or two in there...). Cheers, Dave
*Dave Tedeyan, PE* Senior Engineer | Taitem Engineering, PC 110 South Albany Street | Ithaca, NY 14850 o. *607.277.1118 x121* f. 607.277.2119 www.taitem.com Solar • Sustainability • Energy • Design Certified B-Corporation since 2013 On Tue, Apr 28, 2020 at 11:52 AM Jerry Shafer <jerrysgarag...@gmail.com> wrote: > Sounds like a battery issue at first glance, as you EQ a battery it gets > warm or even hot and this will effect ability to charge. If e en one of the > L-16 is not exactly the same voltage you will not get to EQ untill another > battery over voltages to show your overall volts. Need to look at each > battery volts under this charge condition. Also if you have a battery > acting up be very careful working around them. > Jerry > > On Tue, Apr 28, 2020, 6:50 AM Dave Tedeyan <dtede...@taitem.com> wrote: > >> Hi All, >> >> I've got an outback system (Radian 8048A, 2 FM80, 16 Trojan L16RE-B) >> where when the customer equalizes, the batteries hover right around the EQ >> voltage, but will often dip to 0.1v less. Because of this, the EQ timer >> does not count down properly, and so left to its own devices the system >> would equalize for way longer than it should, potentially forever. This >> will happen when doing an EQ from the solar on a bright sunny day, or the >> generator, or both. The customer can manually keep track of the time and >> manually stop the EQ after 3 hours, but that is not ideal. Has anyone dealt >> with this before and have any suggestions on how they fixed it? >> >> This system is 3-4 years old, and the issue only started in the past year >> or so. >> >> Cheers, >> Dave >> >> *Dave Tedeyan, PE* >> Senior Engineer | Taitem Engineering, PC >> >> 110 South Albany Street | Ithaca, NY 14850 >> o. *607.277.1118 x121* f. 607.277.2119 >> www.taitem.com >> >> Solar • Sustainability • Energy • Design >> Certified B-Corporation since 2013 >> _______________________________________________ >> 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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