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 <[email protected]> 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 <[email protected]> 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 <[email protected]> >> 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 <[email protected]> >> 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 <[email protected]> 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 >
