[RE-wrenches] Battery recommendation WAS: Rolls batteries
Dan Fink
danbob88 at gmail.com
Fri Oct 23 10:03:13 PDT 2015
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 <dave at 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-bounces at 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 <dave at 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-bounces at 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 <allan at 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*
> allan at 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, penobscotsolar at 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
>
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