Sure. Supposedly the plates are a good bit thicker than even high-end deep cycle batteries so they can be cycled daily at the same DOD 3-5 times more than what a GC2 would be able to do.
Here's an article that has more info: https://www.sustainablepreparedness.com/index.php/blog/the-best-kept-secret-in-renewable-energy -Hal On Tue, Feb 7, 2017 at 11:14 AM Ken Hohhof <af...@kwisp.com> wrote: > Define “last”. > > > > *From:* Af [mailto:af-boun...@afmug.com] *On Behalf Of *Harold Bledsoe > *Sent:* Monday, February 6, 2017 6:38 PM > > > *To:* af@afmug.com > *Subject:* Re: [AFMUG] Particularly good recent battery deals? > > > > Agreed! > > > > I'm going to pull the trigger and try the forklift batteries. Supposedly > they will last 3-5x longer than regular deep cycle golf cart batteries. > I'll let you guys know in 10-15 years. > > > > My motivation is that my home grid tied system saves too much power so the > power company added a net meter fee of $7/kw/mo to make up the difference. > > > > Alrighty then, guess I'll take half my house off grid. :-) > > > > Hal > > > > On Mon, Feb 6, 2017 at 1:27 PM Eric Kuhnke <eric.kuh...@gmail.com> wrote: > > Anything rated in CCA (cold cranking amps) is not suitable for cyclic > solar/wind power applications. If the manufacturer hasn't clearly specified > Ah capacity in a table at 5, 10, 20 hour rates it's not designed for > repeated discharge. > > > > > > On Mon, Feb 6, 2017 at 5:01 AM, Harold Bledsoe <hbledso...@gmail.com> > wrote: > > Beware of deep cycle marine batteries. These typically are not true deep > cycle batteries. At 50% depth of discharge, you can expect around 300 > cycles (or 1 year if doing it daily). A true deep cycle battery will do > about 3x that number. > > On Sun, Feb 5, 2017 at 9:00 PM Keefe John <keefe...@ethoplex.com> wrote: > > Exide has a 105 AH battery for $81 > > > http://www.menards.com/main/electrical/batteries-battery-chargers/automotive-lead-acid-batteries/exide-regng-27-12-month-nautilus-marine-deep-cycle-battery/p-1444430136307-c-9100.htm?tid=-3310133469912273928 > > On February 5, 2017 4:55:55 PM CST, Eric Kuhnke <eric.kuh...@gmail.com> > wrote: > > Found this, sunelec.com (big solar equipment dealer for off grid) is > selling the 106Ah version of these for $185 a piece plus pallet shipping: > > > http://www.outbackpower.com/downloads/documents/Store_the_Energy/energycell_re_top_terminal/energycellREtopterminal_specsheet.pdf > > > > Outback, as far as I know, doesn't actually have a battery factory. But > they are a fairly large company so they are relabeling somebody else's deep > cycle off grid design AGM battery. In terms of $/Wh stored the only thing > that beats it is the 6V 225Ah wet cell batteries from Trojan. > > > > > > On Sat, Feb 4, 2017 at 6:00 AM, Harold Bledsoe <hbledso...@gmail.com> > wrote: > > I can across an interesting tip / option - > > > > Have you considered going with forklift batteries? They are flooded lead > acid however I'm reading that they can last 3x longer than golf cart > batteries in PV applications. > > > > > http://gbindustrialbattery.com/Forklift_Battery_Sizes_and_Specifications_Zone15.html > > > > I guess the weight is a downside. Just make sure the whole family eats > their Wheaties on moving day. :-) > > > > Hal > > On Thu, Feb 2, 2017 at 7:11 PM Eric Kuhnke <eric.kuh...@gmail.com> wrote: > > Looking for a bunch of 12V 100Ah AGM top terminal batteries for off grid > PV. Wondering if anyone has recently got a particularly good deal for > something like the Trojan T31 or similar. > > > > > > -- > > Harold Bledsoe > > > > > -- > Sent from my Android device with K-9 Mail. Please excuse my brevity. > > -- > > Harold Bledsoe > > -- > > Harold Bledsoe >
