Hi Wrenches, We recently installed 12,000 Ahr of this GS battery at some cell tower sites. If the cycle life on the specs matches real life then this will be an excellent battery technology. The high-temperature operation characteristics look very good as well.
A couple of things I'll say about the battery and the install; these seem to be a very well thought out battery system. I prefer this system to large monoblock batteries because they come as a 2V cell that is manageable for 2 guys into a very remote 4WD site that we often find ourselves. Lifting equipment is not required. The steel shelves are the most difficult part of the system to handle. They come with a cell level monitoring system, that can be networked connected. I haven't been able to see what info is available from that. I also like the built in breaker that is designed to bolt onto the shelf chassis. They are also a very "safe" battery in the fact that there is rubber insulation sleeve that you can slip on the intercell bussing, another plastic clip that snaps over the bussing as well as the lexan shield that stands off of the terminals. If you do specify these batteries, be sure to add plenty of labor time for the installation process. It took a 2 man team about 3 days to install 4 stacks + monitoring. I guess we will see how they hold up to real life operation... On Thu, Jan 4, 2018 at 1:45 PM, Dave Angelini Offgrid Solar < offgridso...@sti.net> wrote: > I have 2 systems on my hill here that have the Trojan Smart carbon and the > regular Trojan. They both are flooded 2V 1100 AH batteries and I see, and > my clients see no difference. The both are about 6 years old. They both > have the ridiculously stupid 3 ports for each 2V to water. I did not spec > this battery and wanted Surrette but..... > > Dave Angelini Offgrid Solar > "we go where powerlines don't" > http://members.sti.net/offgridsolar/ > e-mail offgridso...@sti.net > text 209 813 0060 > > > Hadn't seen the spec sheet of the GS battery... thanks. > > > > It's a Carbon battery with a Carbon additive to the negative plate. > > Generally and this of course depends on the manufacturer when you add > > carbon to the neg anode (plate) it increases the cycle life, and charge > > acceptance of the battery. It also makes it more resistive to hardened > > sulfation situations. > > > > The drawback, at least from what Rolls has found is when you do this you > > also increase the self discharge rate of the battery, they don't show > this > > on their spec sheet... > > > > Rolls has been working on a carbon based battery for some time now, at > > least longer than I've been there... Eng, says they are still working the > > kinks out and finishing testing. We typically don't beta test product > on > > customers. The draw back on that is we can be behind the new product > > release curve! > > > > <http://www.rollsbattery.com> <http://www.rollsbattery.com> > > <http://www.rollsbattery.com> <http://www.rollsbattery.com> > > <http://www.rollsbattery.com> <http://www.rollsbattery.com> > > <http://www.rollsbattery.com> <http://www.rollsbattery.com> > > <http://www.rollsbattery.com> <http://www.rollsbattery.com> > > <http://www.rollsbattery.com> <http://www.rollsbattery.com> > > <http://www.rollsbattery.com> <http://www.rollsbattery.com> > > <http://www.rollsbattery.com> > > Steve Higgins â‹… Technical Services Manager > > t +1.902.597.4020 m +1.206.790.5840 > > f +1.902.597.8447 e st...@surrette.com > > <#UNIQUE_ID_SafeHtmlFilter_> <http://www.facebook.com/RollsBattery> > > <http://www.facebook.com/RollsBattery> > > <http://www.twitter.com/RollsBattery> > > <https://www.youtube.com/user/RollsBattery> > > <https://www.linkedin.com/company/rolls-battery-engineering> > > <http://www.instagram.com/RollsBattery> > > <http://www.instagram.com/RollsBattery> > > <http://www.instagram.com/RollsBattery> > > ------------------------------ > > CONFIDENTIALITY: The information transmitted herein is intended only for > > the addressee and may contain confidential, proprietary and/or privileged > > material. Any unauthorized review, distribution or other use of or the > > taking of any action in reliance upon this information is prohibited. If > > you receive this email in error, please contact the sender and delete or > > destroy this message and all copies. > > ------------------------------ > > > > On Thu, Jan 4, 2018 at 10:20 AM, Daniel Tittmann <dan...@greenwired.com> > > wrote: > > > >> forgot to include the link to the GS batteries. > >> > >> http://www.gsbattery.com/PDFs/SLR1000-2.pdf > >> > >> Thank you Steve for the information on the construction of the batteries > >> and how that affects cycle life. > >> Cheers- > >> Daniel > >> > >> > >> Daniel Tittmann > >> CTO > >> Greenwired > >> www.greenwired.com > >> dan...@greenwired.com > >> 707-923-2001 Ext. 500 (office) > >> 707-206-5088 (Cell) > >> > >> On Thu, Jan 4, 2018 at 10:49 AM, Daniel Tittmann <dan...@greenwired.com > > > >> wrote: > >> > >> > I am reaching out to the group to see if there is any experience with > >> GS > >> > batteries. Their cycle life graph is better than I have seen in any > >> VRLA > >> > battery I have seen (see comparison below). I wanted to know if > >> anyone > >> on > >> > here has used them and if so have you experienced the cycle life that > >> they > >> > are reporting. I am waiting for a reply from the manufacturer for > >> more > >> > info as well. > >> > > >> > [image: Inline image 2] > >> > > >> > as comparison: > >> > Rolls gel cell cycle life is more classic to what we see in most > >> batteries > >> > http://www.rollsbattery.com/wp-content/uploads/batteries/ > S2-1070GEL.pdf > >> > [image: Inline image 3] > >> > > >> > or Full river DC400-6 > >> > http://www.fullriverbattery.com/product/batteries/DC400-6 > >> > [image: Inline image 1] > >> > What am i missing or how do they do this? > >> > thanks > >> > Daniel > >> > > >> > Daniel Tittmann > >> > CTO > >> > Greenwired > >> > www.greenwired.com > >> > dan...@greenwired.com > >> > 707-923-2001 Ext. 500 <(707)%20923-2001> (office) > >> > 707-206-5088 <(707)%20206-5088> (Cell) > >> > > >> _______________________________________________ > >> 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 > > > > > > > Dave Angelini Offgrid Solar > "we go where powerlines don't" > http://members.sti.net/offgridsolar/ > e-mail offgridso...@sti.net > text 209 813 0060 > > _______________________________________________ > 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 > > -- Mac Lewis *"Yo solo sé que no sé nada." -Sócrates*
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