To allans question as to if it’s a good idea to get these old batteries. If you need them you need them.
I’d ask for 25% off and that the warranty would start from delivered date. Not knowing which battery model His customer is specifying , but I had a client who left his new rolls for a year Just sitting no load and they recovered normally, amazing. Jay Peltz Power. > On Jun 11, 2020, at 9:23 AM, Jay <jay.pe...@gmail.com> wrote: > > > Hi Ray > > Depends on which rolls battery L-16’s > > The EX version is 3400 cycles to 50%, and 2100 cycles to 80% the more > standard version is around 1800 cycles to 50% and 1000 cycles to 80%. > > And the Ah specs listed on the rolls site uses the 20 hr rate. > > Jay > > Peltz power. > > > > > >>> On Jun 11, 2020, at 8:14 AM, Ray <r...@solarray.com> wrote: >>> >> >> As far as 2v L16s go, I've not seen good things with the Trojan L16 2 v >> cells. The Rolls version looks like it is one cell though, not 3 cells >> paralleled internally like the infamous Trojan. The voltages sound a bit >> low, can they give you SG readings? How come they haven't put those on a >> maintenance charge at the warehouse? I've dealt with batteries that have >> sat uncharged for quite a while, and not had any issues, but definitely >> didn't get outstanding life either. I'd pass the discount to the customer >> and let them decide. I'd also offer another battery choice too. The HUP >> for instance is going to have a better price per cycle in the long run, >> since it has 2100 cycles to 80% DOD vs 1200 for the Rolls. With the >> sitting, I'd figure more like 1000 cycles actual maybe. So the cost of the >> Rolls would need to be less than half what an equivalent HUP is. >> >> Also beware, many customers get fooled by Rolls' amp hour specs. They list >> 100 hr discharge rates, so the Rolls can look amazing on paper. However, >> the customer really needs to be designing and comparing at the 20 hr rate. >> I've made that same mistake, and was quite disappointed. >> >> Ray Walters >> Remote Solar >> 303 505-8760 >> On 6/11/20 2:05 AM, Sindelar Solar wrote: >>> Wrenches, >>> >>> Here's one I haven't encountered before, and I'm interested in the range of >>> opinions I may receive. >>> >>> My battery supplier screwed up, and they admit it. On April 27 I ordered a >>> 24V set of 2V Surrette L16 FLAs for a long time client; note that these >>> were the client's choice after his extensive research. The lead time was >>> estimated at 10-12 weeks. Today I got the news that the distribution center >>> in Reno had not placed the order, as collective orders for Rolls batteries >>> were so slow during Covid that they hadn't wanted to ship just one set. >>> >>> I was told that they had a set in the Reno warehouse that they could bring >>> to Albuquerque that had a manufacture date of 6/26/2019. I was told that at >>> rest the 12 cells showed an average resting voltage of 2.14 vpc, with the >>> highest at 2.18V and the lowest at 2.08V. >>> >>> I was offered them at a discount of ~18% off of my dealer cost. >>> >>> Should I have any hesitation about accepting and installing a set that has >>> sat at rest for nearly a year? The alternative is to start over with the >>> 10-12 week lead time, unless we can arrange a rush delivery. >>> >>> Opinions welcome here, please. >>> >>> Allan >>> >>> -- >>> Allan Sindelar >>> al...@sindelarsolar.com >>> NABCEP Certified PV Installation Professional (charter certificant) >>> #102503-52 >>> New Mexico EE98J Journeyman Electrician >>> Founder (Retired), Positive Energy, Inc. >>> 505 780-2738 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 >>
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