<div dir="auto">Dave, <div dir="auto">I would suggest stepping up to 48 nominal, fortress 18.5, battery 12 or 15 k solark inverter, re-wire the array to single or dual string, make the wiring in the home capable of 240, this usually requires main panel re-work and set up the monitoring. </div><div dir="auto">Batteries are like replacement heart valves, never get startups or small manufacturers as so many disappear and now you are stuck.</div><div dir="auto">Fun times.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Sep 17, 2024, 8:19 AM David Palumbo via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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Wrenches,</div>
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I have a nice little rental house here in my off-grid neighborhood that after 40 years is ready to transition to LiFePO4 batteries. </div>
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I have no experience with any lithium home power storage batteries. I'm looking for advice, so I can avoid mistakes as a rental house with battery problems is quite the pain in the ass. The last tenant was my daughter so life with older lead acids wasn't a
huge issue, but now I want something I won't have to enter the house to monitor and operate. I'll bullet what I think I know and my questions.</div>
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<div>The house has four 11-year-old Trojan Industrial IND 17-6 for 925 AH @ 24V that are amply sized for the houses loads.</div>
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<div>It has a newer TriMetric meter that I was supposed to be able to set up for web access using their WIFI module, but I have had no success with being able to monitor battery state of charge remotely.</div>
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<div>I really need something that will give me battery state of charge information without entering the house.</div>
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<div>The system has a single OutBack VFX3624. PV array is 2.5kW. </div>
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<div>System also has a Iota 40A charger so charging with my 6 KW genset is typically in the 100Amp range with the OutBack and Iota.</div>
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<div>We are in northern Vermont, so we rack up significant generator (NOT auto-start) run time in the winter months. </div>
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<div> I'm looking at Eclipse LiFePO4 24V 200AH. Three of these will give me 600AH @ 24V which is 65% of the rated Amp Hrs of the Trojan Industrials now in use. Is this enough?</div>
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<div>My battery box can easily handle up to four of the Eclipse 24V 200AH batteries. I see that Backwoods recommends that only three of the Eclipse are connected with battery cables. If I opted for four (for 800AH) I would need to use
a busbar.</div>
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<div>Are there other distributors of Eclipse batteries other than Backwoods Solar that I should consider? I haven't used my dealer account with them for a number of years and I'm not sure that I'll get a good price from them.</div>
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<div>What is the lead time for getting these batteries shipped out?</div>
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<div>Are there other LiFePO4 batteries I should consider?</div>
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<div>Is 600AH of LiFePO4's enough to replace 925AH of LA's?</div>
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Dave Palumbo</div>
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Retired from running Independent Power, but active in off-grid solar.</div>
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Hyde Park, VT</div>
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802-371-8678 voice or text.</div>
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