<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi Michael,<div class=""><br class=""></div><div class="">For 11 years I’ve been in the Li battery business. We formerly designed and installed over a hundred Li battery based systems, mostly mobile installations but UPS and off-grid as well. Since 2018, we no longer do installations. Currently we sell our own Li-ion brand with many thousands sold and in use. We have not had any fire or explosion claims.</div><div class=""><br class=""></div><div class="">Most Li batteries sold in the US are not UL1973 or ETL certified. Many batteries are very cheaply made to have the lowest price. Based on my experience I consider any battery not certified as potentially dangerous. I don’t know if Discover is certified and make no statement about them. </div><div class=""><br class=""></div><div class="">An important question is what will an insurance company do if there is a claim and the product you install is not certified to these high safety standards? Worth considering.</div><div class=""><br class=""><div class=""><div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;">Larry Crutcher</div><div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;">Starlight Power Systems</div><div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><br class=""></div><div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><br class=""></div><br class="Apple-interchange-newline">
</div>
<div><br class=""><div class="">On May 3, 2024, at 8:21 AM, Michael Morningstar via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" class="">re-wrenches@lists.re-wrenches.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Two days ago, one of my clients came home to find the door of his powershed blown off its hinges and a smoldering Discover AES. The case was still intact and the entire room is coated with a fine graphite-like powder. The fire department was unable/unwilling to do anything to cool the battery down and it smoldered for a day. 199 degrees fahrenheit after 18 hours. Discover is taking this seriously and their response has been great. They are in contact with the cell manufacturer to find a "best practices" for the clean up of the room. They also have said that this is a first for them (lucky me).<div class=""><br class=""></div><div class="">I'm just curious how rare or common <span class="gmail_signature_prefix">LiFePO 4 explosions are? I've never heard of one in the context of residential storage. This has me pretty freaked out.</span><br class=""><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr" class=""><p style="margin:0px;font:18px Helvetica;min-height:22px" class=""><span class=""></span><br class="webkit-block-placeholder"></p><div style="margin: 0px; font-style: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 18px; line-height: normal; font-family: Helvetica;" class="">Michael Morningstar </div><div style="margin: 0px; font-style: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 18px; line-height: normal; font-family: Helvetica;" class=""><br class=""></div><div style="margin: 0px; font-style: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 18px; line-height: normal; font-family: Helvetica;" class="">Morningstar Electric Inc</div><div style="margin: 0px; font-style: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 18px; line-height: normal; font-family: Helvetica;" class="">PO Box 1494</div><div style="margin: 0px; font-style: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 18px; line-height: normal; font-family: Helvetica;" class="">Mount Shasta, CA 96067</div><div style="margin: 0px; font-style: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 18px; line-height: normal; font-family: Helvetica;" class="">530-921-0560</div><div style="margin: 0px; font-style: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 18px; line-height: normal; font-family: Helvetica;" class="">CSLB 1116835</div><div style="margin: 0px; font-style: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 18px; line-height: normal; font-family: Helvetica;" class=""><a href="mailto:mjmorningstar@gmail.com" target="_blank" class="">mjmorningstar@gmail.com</a></div><div style="margin: 0px; font-style: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 18px; line-height: normal; font-family: Helvetica;" class=""><br class=""></div></div></div></div></div></div></div></div></body></html>