Perhaps suggesting the correct amp Hr battery bank would eliminate the need for buss bar. 2 volt EX1400 1K amp hour batteries work very well good warrantee. all the fusing & interconnects would be eliminated. MORE AHs = less interconnects, always the correct way to go! > On Jul 24, 2018, at 9:40 AM, Dave Tedeyan <[email protected]> wrote: > > Thank you all for the ideas and suggestions. This person in particular had #4 > wire for the battery connections, > so they are all getting replaced with anyway. So it seems like rewiring to a > busbar with fuses will be the way to > go. And although not ideal to have so many strings, this will be more cost > effective than just getting a whole new > battery bank right off the bat when they have 10 batteries that have > essentially never been used. > > Cheers, > Dave > > > > > -- > > Dave Tedeyan > Senior Engineer > > Taitem Engineering, PC > 10 Verizon Lane, Lansing, NY 14882 > Voice: (607) 930-3481 x6 <> > www.taitem.com <http://www.taitem.com/> > On Mon, Jul 23, 2018 at 8:50 PM, Glenn Burt <[email protected] > <mailto:[email protected]>> wrote: > Hi Christopher, > > > > I buy my copper buss material from McMaster Carr in appropriate dimensions > for the current I am expecting. > > I then cut it to the lengths I need, drill for appropriate size fasteners and > use 2 layers of heat-shrink tubing to protect the exposed bar. > > > > Hope this helps. > > -Glenn > > > > From: RE-wrenches <[email protected] > <mailto:[email protected]>> On Behalf Of Chris > Schaefer > Sent: Monday, July 23, 2018 2:28 PM > To: RE-wrenches <[email protected] > <mailto:[email protected]>> > Subject: Re: [RE-wrenches] 5 battery strings > > > > What source are you all using for buss bars for these multiple battery string > set ups? > > > > Christopher > > > > On Mon, Jul 23, 2018 at 2:16 PM, <[email protected] > <mailto:[email protected]>> wrote: > > Separate out the individual series strings and run each string to a buss bar > setup. Remember it isn't just resistance differences between batteries but > resistance difference between cells as well. In a setup like the existing > one the resistance differences can really add up and if one battery fails the > entire system will be offline. Running each string to a positive and > negative common buss bar means you can remove individual strings without > disrupting the entire storage and the system can continue operating. Also, > it means the only resistance issues of substance are within individual series > pairs not the entire interconnected bank. > > I ran 10 series pairs of 12v AGM batteries, each pair to a common buss and it > was the longest lasting, most stable battery bank I had. That was years ago > and now it would require fusing each string but for longevity and stability > it is the best bet. > > Tom > > On 2018-07-23 03:56, Dave Tedeyan wrote: > > Since we are on the topic of bad battery practices... > > I may be fixing up a system that was both designed and installed very > poorly. > They have a 24V Outback VFXR inverter, and ten 12V AGM batteries wired > into > 5 parallel strings. I know that is a bad idea, but since they already > have the > equipment, are there any safety issues by re-using this equipment? It > is for a > grid tie battery backup system that will remain in float most of the > time. I assume > that the batteries will not last particularly long, but is there any > harm in using them > and then just getting new batteries once they fail? > > Stringing is shown in the attached picture. > Cheers, > Dave > > -- > > Dave Tedeyan > > SENIOR ENGINEER > > TAITEM ENGINEERING, PC > 10 Verizon Lane, Lansing, NY 14882 > Voice: (607) 930-3481 x6 > www.taitem.com <http://www.taitem.com/> [1] > > Links: > ------ > [1] http://www.taitem.com/ <http://www.taitem.com/> > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: [email protected] > <mailto:[email protected]> > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org> > > List-Archive: > http://www.mail-archive.com/[email protected]/maillist.html > <http://www.mail-archive.com/[email protected]/maillist.html> > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm <http://www.re-wrenches.org/etiquette.htm> > > Check out or update participant bios: > www.members.re-wrenches.org <http://www.members.re-wrenches.org/> > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: [email protected] > <mailto:[email protected]> > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org> > > List-Archive: > http://www.mail-archive.com/[email protected]/maillist.html > <http://www.mail-archive.com/[email protected]/maillist.html> > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm <http://www.re-wrenches.org/etiquette.htm> > > Check out or update participant bios: > www.members.re-wrenches.org <http://www.members.re-wrenches.org/> > > > > > -- > > Chris Schaefer’s > <http://www.solarandwindfx.com/> > Tel/Fax 585-229-2083 or Cell 585-748-1870 > 5115 South Hill Road ~ Canandaigua New York 14424 > www.solarandwindfx.com <http://www.solarandwindfx.com/> ~ E-mail: > [email protected] <mailto:[email protected]> > > Thomas Jefferson, the author of our great Constitution, once said, > "democracy" will cease to exist when you take away from those who are willing > to work and give to those who would not." > > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: [email protected] > <mailto:[email protected]> > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org> > > List-Archive: > http://www.mail-archive.com/[email protected]/maillist.html > <http://www.mail-archive.com/[email protected]/maillist.html> > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm <http://www.re-wrenches.org/etiquette.htm> > > Check out or update participant bios: > www.members.re-wrenches.org <http://www.members.re-wrenches.org/> > > > > _______________________________________________ > 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]/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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