I'm not sure if the life or risk of fire is significantly different or not with LiFePo4 vs Li-ion, but they're more suitable for a lead acid replacement because of the voltage and charging profile, if I understand correctly.
>From what I've seen, they generally are fine with a lead-acid charging profile, but you probably want to verify that it doesn't go above ~58v (assuming this is a 48v system). A higher end BMS might be able to deal with higher voltages, but I haven't looked into that, so I couldn't say for sure. I've ordered from 18650batterystore.com a couple of times. They seem to have some of the best prices around, but there could be better options for large quantities. On Tue, Sep 5, 2023 at 9:53 AM Chuck McCown via AF <af@af.afmug.com> wrote: > I have had little lithium experience to date but I think the answer to all > of your questions is YES. > > The solar guys have been quoting deals like this: 305ah 3.2 Grade B cell > ($89) x 32 = $2,848 for 31kwh, 610ah, 51.2v 16s2p configuration for a 48v > system > > That is 9 cents per watt hour. Half the cost of lead acid, will do many > more cycles. Much lighter. Much smaller. I think that you should sell > your stock in the lead acid battery factories. > > Best Regards, > Chuck McCown > > McCown Technology Corporation > 8401 N Commerce Dr > Lake Point, Utah 84074 > 801-250-9503 Office > 435-830-4306 Cell > www.mccowntech.com > www.microtrench.pro > www.terabitnetworks.com > > *From:* Brough Turner - netBlazr > *Sent:* Tuesday, September 5, 2023 5:38 AM > *To:* Chuck McCown via AF > *Cc:* Brough Turner > *Subject:* [AFMUG] 120v UPS with Li-ion or LiPoFe batteries - some > questions > > I understand LiPoFe is preferable to Li-ion (longer life, less chance of > fire). Is this correct? > > Can the BMS compensate for a for lead-acid UPS's charging profile? > > Is there a battery with a BMS that can be monitored via a network > connection. > > Any recommendations for where to buy batteries in pallet-level quantities? > > Thanks, > Brough > > ------------------------------ > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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