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Lith Ex fire Extinguishers

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stephen1974
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Lith Ex fire Extinguishers

Post by stephen1974 »

Anyone any experience with these? They have been designed for EV fires but I know nothing else about them. Are they any real use or are they just a placebo? how do they put out lithium based fires?
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Re: Lith Ex fire Extinguishers

Post by Messy »

Be very careful when buying these extinguishers. My understanding is they can be effective in certain and rare circumstances, but are not the one size fits all solution for lithium batteries

My last employers bought lithium batteries and altered them in a research workshop for use on specialist applications.

We also ran EVs and had a separate workshop for vehicle repairs

Upon investigation and following an assessment, we bought the special lithium extinguishers (sorry can't recall the brand) for the workshop as it was in a difficult tall building with 24hr staffing who were trained in first aid firefighting and most importantly, the lithium cells were often exposed during the work and when stored in a walk in fridge

We didn't buy them for the vehicle workshop. The building was sprinklered and the lithium cells were contained in large cartridges that would possibly obstruct access for the extinguishing agent

Lastly, excuse the pun but I had my fingers burned recommending and installing fire safety equipment before that had no British, European or US standard. The equipment proved not fit for purpose (video smoke detection) so I decided from that experience only to run kit that's been recommended by a trusted standard such as BS in the UK or NFSA in the USA

At the time of considering the lithium battery extinguishers, no such standard was available. That may have changed
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Re: Lith Ex fire Extinguishers

Post by stephen1974 »

Not looking to buy, just educate myself. This was something I knew was being developed when I was in the car industry but something popped up the other day about lith-ex extinguishers and i just wondered how far they had come.
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Re: Lith Ex fire Extinguishers

Post by grim72 »

I'd recommend not using these ones perhaps? https://www.bbc.co.uk/news/videos/cgllkjexkrgo

It is a worry that is there no legal standpoint on this in terms of what extinguishers to use on battery fires when the sheer volume of products using lithium batteries (and subsequently the growing number of fires involved with them) is growing so rapidly. My understanding is that AVD/Lith-ex extinguishers are labelled as per the manufacturer's recommendations (hence some say they are suitable for Class D fires and some don't).

It would be nice to have some formal and legal requirements for these new types of extinguisher that are becoming more common place on the market.
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