From Newsgroup: uk.rec.waterways
On 30/08/2025 14:01, Martin Nicholas wrote:
The interior:
https://youtu.be/MBwTs4PcawY?si=NkvsabzmEebz-z3L
To start with the first and most glaringly obvious error. The person
that took the photograph was standing at what used to be near enough the original floor level of the boat, and anyone who has ever been on a
narrowboat would know that. The gunwales are normally at about hip
height for me.
LiFePO4 batteries have only recently started to be used to power
electric vehicles. and the vast majority of the ones on the road are
still powered by lithium ion batteries, Usually lithium cobalt oxide
(LCO)or lithium nickel manganese cobalt oxide (NMC) batteries. Even
hybrid buses and cars use them. Early hybrid cars such as the Toyota
Prius used Nickel Metal hydride batteries
LCO and NMC batteries are prone to catch fire and explode if mistreated,
and can only be quickly extinguished by immersing them in water, which
is what the fire brigade did on this occasion, though that was not the
prime reason given. They are also liable to re-ignite when they are
removed from the water, for very well understood reasons, They are also
prone to re-ignite up to 72 hours after they gave been extinguished,
again for well understood reasons. Lithium iron Phosphate batteries have
never before been reported to do either of these things.
Outside a laboratory, this would be the first report of lithium iron
phosphate batteries exploding. If you do manage to set fire to a LiFePO4 battery, the cells are usually intact, unless they have been pierced by
a sharp object. The cells contain nothing that can burn, though very
high temperatures can release toxic gases if the case is pierced.
To sum up, we still have no idea as to what caused the explosion.
=
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Tciao for Now!
John.
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