<div dir="ltr">Login,<div><br></div><div>Might you share with us the link to the UL9540A test method for the MidNite PwrFlo 16? New York is a tough state indeed.</div><div><br></div><div>Christopher</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Mon, Feb 23, 2026 at 12:54 PM William Bryce 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:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Hi Jay</div><div><br></div><div>I somewhat agree, and you must carefully look at what battery is being installed, and what certification it holds.</div><div><br></div>If the LFP battery is Tested with UL9540A then certified to UL9540 after PASSING the UL9540A testing, (and the battery really has that rating). I would not be too concerned with fire. If you read the test reports and understand how this testing is performed, you will then see how safe LFP is.<div><br></div><div>Sure, there are plenty of LFP batteries being sold and installed that do not have the UL9540A test certification. <u>With those batteries I WOULD be concerned.</u></div><div><br></div><div>Do not fall for the Hype, understand the Certifications and the Testing you will then feel confident in the certified LFP batteries.</div><div><br></div><div><u>Ask the manufacturer for a copy of the 9540A test report and read it, after that you will understand how the certification works.</u> Many MFG's will not provide the actual Test report, and that is unfortunate because if you read one you will then feel much better about LFP if it is certified.</div><div><br></div><div>Example: Under the UL9540A test method, the battery is put into a full thermal runaway, the battery must contain ALL fire. The battery is draped with cheesecloth and if any of the cloth gets burned through, the battery fails the test. This is just one example of the many tests the LFP battery must go through to get the certification.</div><div><br></div><div>Logan</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Feb 23, 2026 at 11:17 AM jay via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div>I’m going to disagree about LFP not being capable of burning or exploding. <div><br></div><div>And no I don’t agree with Prose. <br><div><br></div><div>Here is but one of a lot you can find online. </div><div>I have seen and talked to a number of fellow installers who have had different LFP batteries fail, some have been contained within the steel container, others not. </div><div><br></div><div>How is this possible? One avenue is the BMS fails then it’s possible for a single cell to get above the 3.65v which can cause it to fail and then you have the below. Other is of course a faulty manufacturing process. </div><div><br></div><div>In regards to the IRC, I would include just like with LA that ventilation is important to try and prevent enough concentration of gas to reach the explosive threshold.</div><div><br></div><div>jay</div><div><br></div><div><br></div><div><br></div><div><div style="display:block"><div style="display:inline-block" role="link"><a style="border-radius:10px;font-family:-apple-system,Helvetica,Arial,sans-serif;display:block;width:300px;overflow:hidden;text-decoration:none" rel="nofollow" href="https://www.youtube.com/watch?v=JWBt6nv8U58" dir="ltr" role="button" width="300" target="_blank"><table style="table-layout:fixed;border-collapse:collapse;width:300px;background-color:rgb(92,106,116);font-family:-apple-system,Helvetica,Arial,sans-serif" cellpadding="0" cellspacing="0" border="0" width="300"><tbody><tr><td align="center"><img style="width: 300px; height: 168px;" width="300" height="168" alt="maxresdefault.jpg" src="cid:ii_19c8b8b28a0f8985c781"></td></tr><tr><td><table bgcolor="#5C6A74" cellpadding="0" cellspacing="0" width="300" style="table-layout:fixed;font-family:-apple-system,Helvetica,Arial,sans-serif;background-color:rgb(92,106,116)"><tbody><tr><td style="padding:8px 0px"><div style="max-width:100%;margin:0px 16px;overflow:hidden"><div style="font-weight:500;font-size:12px;overflow:hidden;text-overflow:ellipsis;text-align:left"><a rel="nofollow" href="https://www.youtube.com/watch?v=JWBt6nv8U58" style="text-decoration:none" target="_blank"><font color="#FFFFFF" style="color:rgba(255,255,255,0.847)">Electric Boat Explodes While Charging: LFP Batteries</font></a></div><div style="font-weight:400;font-size:11px;overflow:hidden;text-overflow:ellipsis;text-align:left"><a rel="nofollow" href="https://www.youtube.com/watch?v=JWBt6nv8U58" style="text-decoration:none" target="_blank"><font color="#FFFFFF" style="color:rgba(255,255,255,0.55)">youtube.com</font></a></div></div></td></tr></tbody></table></td></tr></tbody></table></a></div></div><br id="m_-2626768385375918426m_-8290271429834634051lineBreakAtBeginningOfMessage"><div><br><blockquote type="cite"><div>On Feb 23, 2026, at 7:40 AM, Dave Tedeyan via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:</div><br><div><div dir="ltr">Hi Jim, <div><br></div><div>Take a look at the requirements in the 2024 IRC for energy storage systems. </div><div><a href="https://codes.iccsafe.org/content/IRC2024V2.0/chapter-3-building-planning#IRC2024V2.0_Pt03_Ch03_SecR330" target="_blank">https://codes.iccsafe.org/content/IRC2024V2.0/chapter-3-building-planning#IRC2024V2.0_Pt03_Ch03_SecR330</a></div><div><br></div><div>Specifically R330.4. To me, this is kind of insanity when dealing with lithium iron phosphate batteries. I am dealing with it on a project right now, where we are installing batteries in an unfinished basement. We are going to have to build out a drywalled enclosure around the batteries, fire tape the seams, fire caulk the holes where the cables come out, and then also build a custom drywall door that will self-close and self latch. All of this for something that is (according to this youtube video - <a href="https://www.youtube.com/watch?v=60LEo0Rwpp8" target="_blank">https://www.youtube.com/watch?v=60LEo0Rwpp8</a>) less flammable than a piece of wood. I understand that loose connections can heat up and pose a fire risk, but it is less likely to burn than a loose connection in an outlet in the wall. I wonder if there is even a single example of residential LFP (not NMC) batteries installed properly and with a proper BMS going up in flames? Safety efforts would be better directed at drywalling around every single outlet in the house...</div><div><br></div><div>NY now enforces this code, and it is really difficult when you come up against an AHJ who enforces it to the letter of the code.</div><div>Does anyone have an idea how to get this code to realign with reality?</div><div><br></div><div>Cheers, </div><div>Dave</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Feb 23, 2026 at 9:18 AM Jim Gowdy via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Good Morning,</div><div> I have a customer where we are replacing their FLA battery bank with Lithium, specifically the Discover Helios ESS 16.1KW battery and they have concerns about fire suppression in case the battery catches on fire. I've never really thought about it other than installing them on non combustible material and letting the BMS handle any over temp, over charging, etc. I've seen batteries grid tied and offgrid where the batteries are mounted in all sorts of places and I don't think anyone has fire suppression on their minds. Has anyone had any experience needing to install some sort of fire suppression for their battery bank or have any thoughts on this matter? </div><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr">Jim with Gowdy Electric<div>Cambria, Ca 93428</div><div>business 805 927 2630</div><div>cell 805 975 5279</div></div></div></div>
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</blockquote></div><div><br clear="all"></div><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><p style="text-align:center"><span style="font-size:10pt;color:rgb(31,73,125)"><font face="Arial, sans-serif">Chris Schaefer’s<br></font></span><img src="https://ci3.googleusercontent.com/mail-sig/AIorK4xwQObc1lE4m-NGBGV2ONhmIo5vEAZs2lO5NoIACbJsI4fJ_a1hsiFC2biIJSxI90VJ_atMDSuJtjW-"><br><i><span style="font-family:Arial,sans-serif;color:rgb(31,73,125)"><span style="font-size:9pt">Tel 585-229-2083 or Cell 585-748-1870 </span><span style="font-size:12px"><br></span></span></i><i style="font-size:12.8px"><span style="font-size:10pt"><font color="#1f497d"><font face="Arial, sans-serif">5115
S Hill Road ~ Canandaigua New York 14424<br></font></font></span></i><i style="font-size:12.8px"><span style="font-size:10pt;font-family:Arial,"sans-serif";color:rgb(31,73,125)"><a href="http://www.solarandwindfx.com" target="_blank"><span style="color:blue">www.solarandwindfx.com</span></a> ~ E-mail: <span style="color:blue"><a href="mailto:chris@solarandwindfx.com" target="_blank">chris@solarandwindfx.com</a></span></span></i></p><p style="text-align:center"><i><span style="font-size:10pt;font-family:Arial,"sans-serif";color:rgb(31,73,125)"><img src="https://ci3.googleusercontent.com/mail-sig/AIorK4ytw2s5T2YLi-11AL2Jyo5Jt6UbbDYElzDl4X0PqflWvs06VON--dPV7x_cgeW3zkEV-fkQc7IhsiwV"><br></span></i></p>
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