What type of fire retardant is necessary for a battery pack fire? I have heard of fire departments complaining that they are less than prepared to battle such fires.
George Mullineaux 3rd Shift Maintenance ________________________________ From: EV <[email protected]> on behalf of Bill Dube via EV <[email protected]> Sent: Monday, September 29, 2025 9:25 PM To: [email protected] <[email protected]> Cc: Bill Dube <[email protected]> Subject: [External] Re: [EVDL] How Regulations Are Trying To Keep Home Battery Installs Safe CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender's actual email address and know the content is safe. I often see DIY solar installations that include a DIY battery bank on line. These often have gleaming exposed bare bus ͏͏ [External email] <https://summary.us1.defend.egress.com/v3/summary?ref=email&crId=68db31aadc46a1d9be3dcafa&lang=en> External email <https://summary.us1.defend.egress.com/v3/summary?ref=email&crId=68db31aadc46a1d9be3dcafa&lang=en> [External email] <https://summary.us1.defend.egress.com/v3/summary?ref=email&crId=68db31aadc46a1d9be3dcafa&lang=en> I often see DIY solar installations that include a DIY battery bank on line. These often have gleaming exposed bare bus bars and wooden enclosures. 😮 No BMS! 😮 They are often placed in poorly thought out locations like basements, attached garages, bedroom closets, etc. 😮 No thought whatsoever as to what might happen if something, anything, happens to go wrong. None. In my experience, everyone that has worked with stationary DIY battery banks or high power EV racing program for any length of time has, no doubt, had a battery pack fire. If you ask them "Have you ever had a battery pack fire?" They will deny it emphatically. They will then, perhaps, tell you about a "friend" that had a_catastrophic_ battery pack fire. A battery pack stores a HUGE amount of energy, because that is what it is designed to do. You have to plan for it to short out, catch fire, and then release all that energy at any point in its construction or its use. This is what batteries live to do, given the chance. All of these cells are patiently waiting for you, (or someone else,) to make a /tiny/ mistake. If you don't carefully make contingency plans, and design accordingly, the pack will most definitely catch fire eventually. It will then invite anything near it to "join the party." You need to think, "What if this thing catches on fire? What will happen next?" Bill D. On 9/30/2025 5:53 AM, (-Phil-) via EV wrote: > https://hackaday.com/2025/09/24/how-regulations-are-trying-to-keep-home-battery-installs-safe/ > > A few years ago I had a Ternary battery fire in my workshop which caused > about $60k of damages, so be careful out there kids! I was lucky that my > shop is not attached to my house, and it was a metal building, so damages > were limited. One defective cell can cause thermal runaway of an entire > ternary pack, even high quality ones. If you do have ternary ESS, they > should be in steel enclosures with properly engineered vents. > > I won't have any large battery systems in/near my home unless they are LFP, > Ternary is just too risky. > -------------- next part -------------- > An HTML attachment was scrubbed... > URL:<http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20250929/084517a7/attachment.htm> > _______________________________________________ > Address messages [email protected] > No other addresses in TO and CC fields > HELP:http://www.evdl.org/help/ > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20250930/ba77f60b/attachment.htm> _______________________________________________ Address messages to [email protected] No other addresses in TO and CC fields HELP: http://www.evdl.org/help/ -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20250930/bf4603f4/attachment.htm> _______________________________________________ Address messages to [email protected] No other addresses in TO and CC fields HELP: http://www.evdl.org/help/
