I'm wondering how well lithiums hold up compared to flooded cells in a non-environmentally controlled area. I suspect it's worse.
On Wed, Feb 12, 2020 at 6:20 PM <[email protected]> wrote: > In my 42+ years of dealing with stationary flooded cells is that you can > easily get 20+ years from them if they are properly maintained and kept in > an environmentally controlled area. > > -----Original Message----- > From: Bill Prince > Sent: Wednesday, February 12, 2020 5:04 PM > To: [email protected] > Subject: Re: [AFMUG] Alibaba LiFePO4 48V 200Ah battery packs? > > I think you would expect at least 2-3 times the life with lithium > (almost all the various chemistries currently in vogue). You can also > increase discharge tolerance to 80-90 percent instead of the usual > lead-acid 50% (or thereabouts). > > I think the cost is still a bit over the top. Maybe another year or two > depending. > > > bp > <part15sbs{at}gmail{dot}com> > > On 2/12/2020 3:47 PM, Ken Hohhof wrote: > > Life also matters. > > > > Half the cost but has to be replaced in half the time would not be a good > > deal. With my luck, if batteries die after 3 years, I'll have a big > power > > outage every 37 months. And it's not just a cost calculation. Lugging > > half > > a ton of new batteries out to a tower and then hauling the old ones back > > for > > recycling sucks. So if someone has battery technology that lasts 10 or > 20 > > years, that's worth a bunch. > > > > -----Original Message----- > > From: AF <[email protected]> On Behalf Of [email protected] > > Sent: Wednesday, February 12, 2020 5:36 PM > > To: [email protected] > > Subject: Re: [AFMUG] Alibaba LiFePO4 48V 200Ah battery packs? > > > > Charging time doesn't interest me much in a grid backup situation. The > > cost > > of the battery per watt hour is normally my only consideration for a > > backup > > battery. > > > > -----Original Message----- > > From: Robert Andrews > > Sent: Wednesday, February 12, 2020 4:25 PM > > To: [email protected] > > Subject: Re: [AFMUG] Alibaba LiFePO4 48V 200Ah battery packs? > > > > Nice thing about the lithium Iron is any charger that is programmable > > will work. And the faster you can charge them the better. You think > > flooded times of 2-4 hours and with a big charger the lithium banks can > > charge at 100amps and 1 hour. > > > > On 02/12/2020 02:06 PM, [email protected] wrote: > >> 21 cents per watt hour. That is not competitive with flooded cells. > >> And what kind of special charger would you have to have? > >> *From:* Peter Kranz via AF > >> *Sent:* Tuesday, February 11, 2020 5:36 PM > >> *To:* [email protected] > >> *Cc:* Peter Kranz > >> *Subject:* [AFMUG] Alibaba LiFePO4 48V 200Ah battery packs? > >> > >> Anyone successfully built a telecom UPS solution using rack mount > >> LiFePO4 batteries sourced from china? > >> > >> There seems to be endless arrays of rack mount solutions there: > >> > >> https://www.alibaba.com/product-detail/48v-100ah-200ah-lithium-ion-bat > >> tery_60844575234.html?spm=a2700.details.pronpeci14.6.7e40675elEWkcL > >> > >> Prices run about 25% the cost of locally sourced LiFePO4 solutions. > >> The selection is crazy however, and who knows what the gotchas are. > >> > >> *Peter Kranz > >> *www.UnwiredLtd.com <http://www.unwiredltd.com/> > >> Desk: 510-868-1614 x100 > >> Mobile: 510-207-0000 > >> [email protected] > >> > >> ---------------------------------------------------------------------- > >> -- > >> -- > >> AF mailing list > >> [email protected] > >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com > >> > >> > > -- > > AF mailing list > > [email protected] > > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > > > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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