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  1. #31
    VoidMaster
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    Default Re: How Long Will EV charging Remain At A Low Price?

    It's not the explosion it's the lithium on fire, you've seen magnesium burn for instance.

    Fully charged batteries are ready to burn with any distortion or bend in the packaging past a certain point; due to the short-circuited charged cell which will then go on fire, starting all its companion cells on the same path.
    It's not the least charm of a theory that it is refutable. The hundred-times-refuted theory of "free will" owes its persistence to this charm alone; some one is always appearing who feels himself strong enough to refute it - Friedrich Nietzsche

  2. #32
    Wrinkly Member! B.M.'s Avatar
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    Default Re: How Long Will EV charging Remain At A Low Price?

    Quote Originally Posted by zqwerty View Post
    It's not the explosion it's the lithium on fire, you've seen magnesium burn for instance.

    Fully charged batteries are ready to burn with any distortion or bend in the packaging past a certain point; due to the short-circuited charged cell which will then go on fire, starting all its companion cells on the same path.
    And just as a bonus, even if there is no fire, if you have to cut someone out, or pull cars apart, there is somewhere between 400v - 900v to deal with.
    Global Warming is Mann made.
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    The problems we face today are because the people who work for a living are now outnumbered by those who vote for a living.

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  3. #33
    Senior Member 1101's Avatar
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    Default Re: How Long Will EV charging Remain At A Low Price?

    Quote Originally Posted by B.M. View Post
    And just as a bonus, even if there is no fire, if you have to cut someone out, or pull cars apart, there is somewhere between 400v - 900v to deal with.

    to be fair, just as many dangers cutting people out of crashed petrol cars , allways the risk of fire .
    and the risks with airbags going off .
    Allways will be dangers with cars .

    Ive had a petrol car (Viva) catch on fire , while driving down the motorway .
    PLASTIC airfilter box fell onto the exhaust manifold/pipes .

    Plenty of fires with petrol cars . Its not just an EV issue , although petrol cars wont re-ignite several times after the fires put out .
    We dont worry about fire risks with all the lithium batts in cheap devises thoughout our home or in our pocket .

  4. #34
    Retired old codger kenj's Avatar
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    Default Re: How Long Will EV charging Remain At A Low Price?

    Quote Originally Posted by 1101 View Post
    I've had a petrol car (Viva) catch on fire , while driving down the motorway .
    PLASTIC airfilter box fell onto the exhaust manifold/pipes .
    .
    That sort of thing was happening when I used to work on them at the local GM garage when they were new!

    Ken
    Corgi Ben Kenobi.......Related by Corgi to the Queen

  5. #35
    Wrinkly Member! B.M.'s Avatar
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    Default Re: How Long Will EV charging Remain At A Low Price?

    Quote Originally Posted by 1101 View Post
    We dont worry about fire risks with all the lithium batts in cheap devises thoughout our home or in our pocket .
    That is because not one of them can provide anything like the Volts or Amps of an EV battery.

    I can see some "Volunteer Fireman" trying to free someone with the "Jaws of Life".
    Global Warming is Mann made.
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    The problems we face today are because the people who work for a living are now outnumbered by those who vote for a living.

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  6. #36
    Senior Member 1101's Avatar
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    Default Re: How Long Will EV charging Remain At A Low Price?

    Quote Originally Posted by B.M. View Post
    I can see some "Volunteer Fireman" trying to free someone with the "Jaws of Life".
    Pretty much a non issue .
    They dont run the EV power cables through the door pillars
    Firemen will need training on how to deal with EV's though


    "the high voltage system is completely isolated from the chassis and that integrated safety systems and basic electrical theory protect occupants and responders."
    https://www.firerescue1.com/fire-pro...5Sth8yafZlpmr/

    vid of jaws of life on a Tesla
    https://youtu.be/_gLVBcY2rXc

    Just what voltage do these EV's run on anyway ? Is it really HV ?

  7. #37
    Wrinkly Member! B.M.'s Avatar
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    Default Re: How Long Will EV charging Remain At A Low Price?

    Quote Originally Posted by 1101 View Post
    Pretty much a non issue .
    They dont run the EV power cables through the door pillars
    Firemen will need training on how to deal with EV's though


    "the high voltage system is completely isolated from the chassis and that integrated safety systems and basic electrical theory protect occupants and responders."
    https://www.firerescue1.com/fire-pro...5Sth8yafZlpmr/

    vid of jaws of life on a Tesla
    https://youtu.be/_gLVBcY2rXc

    Just what voltage do these EV's run on anyway ? Is it really HV ?
    Excuse my mirth.

    Are you telling me that having a tangled mess with the potential of there being somewhere between 400v & 900v running around supported by 7616 cells is “Pretty much a Non Issue”.

    And just for anyone interested, here are some statistics for the “Tesla S” which seems to have been made the benchmark among journalists.

    Click image for larger version. 

Name:	Tesla S.png 
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ID:	10805
    Global Warming is Mann made.
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    The problems we face today are because the people who work for a living are now outnumbered by those who vote for a living.

    I take no responsibility for the accuracy of any media links I quote.

  8. #38
    Senior Member 1101's Avatar
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    Default Re: How Long Will EV charging Remain At A Low Price?

    assuming proper training , pretty much a non issue . They arnt checking for live voltage with tongues , they will be fully kitted out with gloves & boots .
    And being trained ( ha ), they wont being using water on or near EV crashes
    The bigger issue is when it all catches on fire

    30,000v ++ in petrol engines : again , a non issue
    240v in many home campervans & some service vehicles

  9. #39
    Senior Member Paul.Cov's Avatar
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    Default Re: How Long Will EV charging Remain At A Low Price?

    Quote Originally Posted by 1101 View Post
    assuming proper training , pretty much a non issue . They arnt checking for live voltage with tongues , they will be fully kitted out with gloves & boots .
    And being trained ( ha ), they wont being using water on or near EV crashes
    The bigger issue is when it all catches on fire

    30,000v ++ in petrol engines : again , a non issue
    240v in many home campervans & some service vehicles
    Actually, I've seen it stated that the only good way to extinguish a lithium battery fire is water.... lots and lots of water to a) remove the heat, and b) flood out the air feeding the fire.

    There is a loop of heavy orange wire in Teslas near the door pillars which are actually there to make them easy access to deliberately cut, and they include tags to indicate they should be cut. It may be that the process of cutting them serves to blow a very major pyro fuse at the level of the battery pack, but I'm speculating there, but it seems reasonable that is the purpose.

  10. #40
    Senior Member piroska's Avatar
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    Default Re: How Long Will EV charging Remain At A Low Price?

    In todays Driven there is an article about new batteries.........not lithium. Some while away yet but they have been developed.
    https://www.driven.co.nz/advice/advi...-ev-ownership/
    Ex-pctek

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