Dave, it's 6 T-105s and over the winter the only load is the CC and inverter. Temperature is unknown, though likely gets to -20F. There is insulation, not that it does any good if they are not charging to capture some heat.
Dan Fink Adjunct Professor, Ecotech Institute IREC Certified Instructor™ for: ~ PV Installation Professional ~ Small Wind Installer Executive Director, Buckville Energy NABCEP / IREC / ISPQ Accredited Continuing Education Providers™ 970.672.4342 On Fri, Oct 23, 2015 at 10:22 AM, Dave <d...@independentpowerllc.com> wrote: > Hey Dan, > > > > Interesting voltage numbers. How many T-105's in this system and what is > the load? What is the temperature of the battery bank? > > > > Thanks, > > Dave > > > > *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On > Behalf Of *Dan Fink > *Sent:* Friday, October 23, 2015 10:51 AM > *To:* RE-wrenches > *Subject:* Re: [RE-wrenches] Battery recommendation WAS: Rolls batteries > > > > Another thumbs up on Trojan T-105 golf cart batteries. They take owner > abuse with grace and dignity, are easy to move via non-truck methods and > with shipping caps on the cells even helicopter operators don't whine too > much. > > Here's some data aq from one of my helo installs in northern BC that gets > zero sun 3 months of the year. These T-105s have been in place since 2009 > and are still going strong. > > > > > Dan Fink > > Adjunct Professor, Ecotech Institute > > IREC Certified Instructor™ for: > > ~ PV Installation Professional > > ~ Small Wind Installer > > Executive Director, Buckville Energy > > NABCEP / IREC / ISPQ Accredited Continuing Education Providers™ > 970.672.4342 > > > > > > > On Thu, Oct 22, 2015 at 6:51 PM, Dave <d...@independentpowerllc.com> > wrote: > > Jay, > > > > I second your thumbs up for golf cart batteries for their value to budget > wise off-gridders. I sell a lot of Trojan T-105's (selling more of the RE > models the last few years) to do-it-yourselfers with small systems. I have > not seen problems with two, and up to three strings of these in 24v > systems. Many of my customers can't afford the more expensive batteries and > they have been getting 8 to 12 years of service from T-105's. > > > > David Palumbo > > Independent Power LLC > > 462 Solar Way Drive > > Hyde Park, VT 05655 > > > > > > > > *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On > Behalf Of *jay > *Sent:* Thursday, October 22, 2015 6:40 PM > *To:* RE-wrenches > *Subject:* [RE-wrenches] Battery recommendation WAS: Rolls batteries > > > > Hi Allan, > > > > A few questions. > > > > how little energy? amp hrs night/avg. > > and > > is mx something this person does or would like to do without? > > > > But given what you’ve said, I wouldn’t go with wet cell industrial as > you’ll never get the C rate you need. If the 8 x L-16’s have done her > well ( and probably the battery box is set up for that form factor) and > with your budget I’d go with another set of L-16’s flooded or sealed if > the budget/want allows. > > > > And if the need is really quite small, I”d consider golf cart. Yea yea,I > hear all the laughs, but where I live, golf carts seem to have the life > they always have, but L-16’s ( all brands) seem to have a shorter and > shorter life for reasons I don’t understand. > > > > > > jay > > > > peltz power > > > > > > > > > > On Oct 22, 2015, at 11:19 AM, Allan Sindelar <al...@sindelarsolar.com> > wrote: > > > > I have a related question, please. One of my longtime off grid clients is > a single woman who maintains a nonprofit sanctuary for about 30 rescue > dogs, both adoptable and not adoptable (curious? www.bridgingtheworlds.org). > With that many animals, Beverly seldom leaves her remote land and her > support and sustenance comes primarily from donations. Her existing system > is a 18-year-old SW4024/Solar Boost SB50, with 800W of old array and eight > L16s. > > The L16s were takeouts from another job that I figured had some life left > (used for two years in another contractor's Sunny Island GTBB system > without telling the customer that he needed to add water regularly). I gave > them to her at no cost and they lasted three years but are now dying fast. > > At my suggestion she has been running a GoFundMe campaign that has raised > $2900. I have already told her that I'll do the swapout at no charge. I > told her that the choice of her next set of batteries would depend on the > money she raised: we have another 24V set of 820A/hr Rolls that I think has > some life left, or we can afford 8 L16s, or with the most generous donation > total I'll order a set of HUPs and they'll last her the rest of her life > (or maybe not - she's healthy, beautiful and independent at 71 years). > > So, my question: At $3,000 and 24V, what would you sell her? This is bound > to bring varied opinions, but I want to look beyond what I would select > based on price and get other Wrenches' suggestions. I'll add that while the > array is small and old, she lives well on very little energy, and has a > TriMetric and a backup generator. > > Thank you for your opinions. > Allan > > *Allan Sindelar* > al...@sindelarsolar.com > NABCEP Certified PV Installation Professional > NABCEP Certified Technical Sales Professional > New Mexico EE98J Journeyman Electrician > Founder (Retired), Positive Energy, Inc. > *505 780-2738 <505%20780-2738> cell* > > > > On 10/22/2015 11:50 AM, penobscotso...@midmaine.com wrote: > > As with Tump, we have been using the KS series for over 20 years with > > little issue. My own particular caveat is that we have now started to use > > Crown as well and are finding them as rugged, easier to move (metal cases > > with handles), with built in water miser caps, and a better warranty, and > > with great success. I also echo Tumps sentiments with Roy at RAE. We have > > been buying from him since our inception in 1988. > > > > Daryl > > > > > > > > The 5000 series are what we always recommend and install for my off grid > > clients. 2 volt cells are the only way we go. Despite what folks believe, > > we find it easier to handle the KS series then the L16. > > We have been using them for many years and as with ANY manu, they have and > > had issues BUT...... we feel w/ proper system sizing, education of the > > client & record keeping we have yet to have an issue w/ warrantee claims. > > That being said we have had a long relationship W/Jamie Surrette and his > > supplier, Roy Early and his crew at RAE Battery, one of the best > > suppliers in our 27+ years. > > On Oct 22, 2015, at 11:15 AM, Kristopher Schmid wrote: > > > > Hi Wrenches, > > > > Anyone using Rolls Surrette batteries? Happy with them? Worth the > > extra $$$? > > > > Thanks for the feedback, > > Kris > > > > -- > > Shine On! > > > > Kris Schmid > > Legacy Solar, LLC > > 864 Clam Falls Trail > > Frederic, WI 54837 > > www.legacysolar.com > > 715-653-4295 > > NABCEP Certified PV Installer > > Licensed Wisconsin Master Electrician > > BSEE > > _______________________________________________ > > 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 > > > > t...@swnl.net www.SWNL.net <http://www.swnl.net/> > > Solarwinds Northernlights > > Serving Mid Coast Maine & Northern California > > 207-832-7574 Cl. 610-517-8401 > > Blair "TUMP" May > > ******** MAINE'S CHARTER ******** > > NABCEP "Certified PV Installer" > > > > ******** MAINE'S CHARTER ******** > > Trace Xantrex "Certified" Dealer / Installer" > > > > _______________________________________________ > > 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 > > > > > _______________________________________________ > 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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