• OT: Do electric cars let you monitor INDIVIDUAL battery temperature?

    From John Doe@21:1/5 to All on Mon Jun 20 03:09:31 2022
    Seems to me that is an important question, no matter what alleged device protection there is.

    I would want to know what the highest INDIVIDUAL battery temperature is. I would want an alarm when any battery reaches X degrees.

    Doesn't matter how many batteries there are. The more batteries, the more important for the driver to know what's going on.

    I suppose they do not keep track of individual battery temperature, but maybe they should. I would want that. Too many batteries to keep track of? Then too risky.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Doe@21:1/5 to John Doe on Mon Jun 20 03:16:50 2022
    XPost: free.spam

    Off topic troll...

    --
    John Doe <always.look@message.header> wrote:

    Path: not-for-mail
    From: John Doe <always.look@message.header>
    Newsgroups: sci.electronics.design
    Subject: OT: Do electric cars let you monitor INDIVIDUAL battery temperature? Date: Mon, 20 Jun 2022 03:09:31 -0000 (UTC)
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    Seems to me that is an important question, no matter what alleged device protection there is.

    I would want to know what the highest INDIVIDUAL battery temperature is. I would want an alarm when any battery reaches X degrees.

    Doesn't matter how many batteries there are. The more batteries, the more important for the driver to know what's going on.

    I suppose they do not keep track of individual battery temperature, but maybe they should. I would want that. Too many batteries to keep track of? Then too risky.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Edward Hernandez@21:1/5 to All on Mon Jun 20 03:19:14 2022
    XPost: free.spam

    Troll Doe stated the following in message-id
    <svsh05$lbh$5@dont-email.me>
    (http://al.howardknight.net/?ID=164904625100) posted Fri, 4 Mar 2022
    08:01:09 -0000 (UTC):

    Compared to other regulars, Bozo contributes practically nothing
    except insults to this group.

    Yet, since Wed, 5 Jan 2022 04:10:38 -0000 (UTC) Troll Doe's post ratio
    to USENET (**) has been 62.0% of its posts contributing "nothing except insults" to USENET.

    ** Since Wed, 5 Jan 2022 04:10:38 -0000 (UTC) Troll Doe has posted at
    least 1989 articles to USENET. Of which 173 have been pure insults and
    1060 have been Troll Doe "troll format" postings.

    The John Dope troll stated the following in message-id <sdhn7c$pkp$4@dont-email.me>:

    The troll doesn't even know how to format a USENET post...

    And the John Dope troll stated the following in message-id <sg3kr7$qt5$1@dont-email.me>:

    The reason Bozo cannot figure out how to get Google to keep from
    breaking its lines in inappropriate places is because Bozo is
    CLUELESS...

    And yet, the clueless John Dope troll has itself posted yet another
    incorrectly formatted USENET posting on Mon, 20 Jun 2022 03:16:50 GMT in message-id <CERrK.357724$%OV1.281696@usenetxs.com>.

    UMVFlEZUpR8r

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From whit3rd@21:1/5 to John Doe on Sun Jun 19 22:14:37 2022
    On Sunday, June 19, 2022 at 8:09:38 PM UTC-7, John Doe wrote:
    Seems to me that is an important question, no matter what alleged device protection there is.

    It's important, all right, so a battery diagnostic could show the effects. Individual cell temperatures, though, is hundreds of numbers, mainly
    about the same because the cells are thermally regulated (heated/cooled)
    in operation.

    When the vehicle is stationary, you'd just see temperature settling to ambient, and when it's moving, you have more important info (like children running into the road) than a thermometer reading on cell #225.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From corvid@21:1/5 to John Doe on Sun Jun 19 21:50:41 2022
    On 6/19/22 20:16, John Doe wrote:
    Off topic troll...

    The troll means cells, but doesn't know it. There needs to be a pie
    chart, with an appropriately colored slice of pie for each cell.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Doe@21:1/5 to corvid on Mon Jun 20 05:28:29 2022
    Some use 18650 batteries, or maybe 20/21. Apparently some beginning to use bigger batteries.

    Yes, you can call the whole thing a "battery", or a "cluster of cells/batteries" but in fact it's made up of a bunch of INDIVIDUAL
    batteries. Each battery is in its own individual package, therefore calling those individual batteries "batteries" is sensible.

    But seriously. This thing must be perpetually stoned/drunk...


    corvid <bl@ckb.ird> wrote:

    On 6/19/22 20:16, John Doe wrote:
    Off topic troll...

    The troll means cells, but doesn't know it. There needs to be a pie
    chart, with an appropriately colored slice of pie for each cell.


    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Doe@21:1/5 to whit3rd@gmail.com on Mon Jun 20 05:38:32 2022
    whit3rd <whit3rd@gmail.com> wrote:

    John Doe wrote:

    Seems to me that is an important question, no matter what alleged
    device protection there is.

    It's important, all right, so a battery diagnostic could show the
    effects. Individual cell temperatures, though, is hundreds of numbers, mainly about the same because the cells are thermally regulated (heated/cooled) in operation.

    When the vehicle is stationary, you'd just see temperature settling to ambient, and when it's moving, you have more important info (like
    children running into the road) than a thermometer reading on cell #225.

    Seems everybody else missed Flyguy's post...

    https://youtu.be/5r-yN8SugWM

    "An Electric Bus Caught Fire After Battery Explosion in Paris"

    What was that molten rain was, pouring down on both sides of the bus? Gotta
    be the best electric vehicle explosion video to date.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Doe@21:1/5 to John Doe on Mon Jun 20 05:42:53 2022
    XPost: free.spam

    It's not a troll, and it's properly labeled "OT".

    We have a convention here on USENET. Most agree that off-topic posts are okay if they are properly labeled "OT". In any case, calling an "OT" post "off- topic" is REDUNDANT.



    John Doe <always.look@message.header> wrote:

    Off topic troll...


    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From DecadentLinuxUserNumeroUno@decadenc@21:1/5 to John Doe on Mon Jun 20 09:52:29 2022
    John Doe <always.look@message.header> wrote in
    news:t8oodb$jl3$1@dont-email.me:

    Seems to me that is an important question, no matter what alleged
    device protection there is.

    I would want to know what the highest INDIVIDUAL battery
    temperature is. I would want an alarm when any battery reaches X
    degrees.

    Doesn't matter how many batteries there are. The more batteries,
    the more important for the driver to know what's going on.

    I suppose they do not keep track of individual battery
    temperature, but maybe they should. I would want that. Too many
    batteries to keep track of? Then too risky.


    They are called cells. A group of cells is called a battery.

    It was always that way. Even a nine volt battery is a group of
    small cells. Individual cells like C cell or D cell or AA or AAA
    cell got called "battery" by idiots in the '60s and beyond until
    Webster finally "adopted" battery as meaning any DC power source.
    Another place where America's folks got the dumbed down version and
    now they are all that way.

    But in this case... These are individual cells arrayed together to
    form a battery. And individual cells can be and likey are
    temperature monitored but likely would not "let you monitor" it. It
    is internal. Part of the charge/discharge "watchdog" circuitry.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From DecadentLinuxUserNumeroUno@decadenc@21:1/5 to John Dope on Mon Jun 20 09:59:18 2022
    John Dope <always.look@message.header> wrote in news:t8p0hs$q7d$2@dont- email.me:

    Yes, you can call the whole thing a "battery", or a "cluster of cells/batteries" but in fact it's made up of a bunch of INDIVIDUAL
    batteries.

    Individual CELLS. There is no such thing as an individual battery.
    The two terms are mutually exclusive.

    Bwuhahahahahhahahha!

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From a a@21:1/5 to DecadentLinux...@decadence.org on Mon Jun 20 03:34:44 2022
    On Monday, 20 June 2022 at 11:59:23 UTC+2, DecadentLinux...@decadence.org wrote:
    John Dope <alway...@message.header> wrote in news:t8p0hs$q7d$2@dont- email.me:
    Yes, you can call the whole thing a "battery", or a "cluster of cells/batteries" but in fact it's made up of a bunch of INDIVIDUAL batteries.
    Individual CELLS. There is no such thing as an individual battery.
    The two terms are mutually exclusive.

    Bwuhahahahahhahahha!
    Edward Hernandez’s profile photo
    Edward Hernandez
    05:19 (7 hours ago)
    to
    Troll Doe stated the following in message-id
    <svsh05$lbh$5...@dont-email.me>
    (http://al.howardknight.net/?ID=164904625100) posted Fri, 4 Mar 2022
    08:01:09 -0000 (UTC):

    Compared to other regulars, Bozo contributes practically nothing
    except insults to this group.

    Yet, since Wed, 5 Jan 2022 04:10:38 -0000 (UTC) Troll Doe's post ratio
    to USENET (**) has been 62.0% of its posts contributing "nothing except insults" to USENET.

    ** Since Wed, 5 Jan 2022 04:10:38 -0000 (UTC) Troll Doe has posted at
    least 1989 articles to USENET. Of which 173 have been pure insults and
    1060 have been Troll Doe "troll format" postings.

    The John Dope troll stated the following in message-id <sdhn7c$pkp$4...@dont-email.me>:

    The troll doesn't even know how to format a USENET post...

    And the John Dope troll stated the following in message-id <sg3kr7$qt5$1...@dont-email.me>:

    The reason Bozo cannot figure out how to get Google to keep from
    breaking its lines in inappropriate places is because Bozo is
    CLUELESS...

    And yet, the clueless John Dope troll has itself posted yet another
    incorrectly formatted USENET posting on Mon, 20 Jun 2022 03:16:50 GMT in message-id <CERrK.357724$%OV1.2...@usenetxs.com>.

    UMVFlEvR8r

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From bitrex@21:1/5 to DecadentLinuxUserNumeroUno@decadenc on Mon Jun 20 09:12:59 2022
    On 6/20/2022 5:52 AM, DecadentLinuxUserNumeroUno@decadence.org wrote:
    John Doe <always.look@message.header> wrote in news:t8oodb$jl3$1@dont-email.me:

    Seems to me that is an important question, no matter what alleged
    device protection there is.

    I would want to know what the highest INDIVIDUAL battery
    temperature is. I would want an alarm when any battery reaches X
    degrees.

    Doesn't matter how many batteries there are. The more batteries,
    the more important for the driver to know what's going on.

    I suppose they do not keep track of individual battery
    temperature, but maybe they should. I would want that. Too many
    batteries to keep track of? Then too risky.


    They are called cells. A group of cells is called a battery.

    It was always that way. Even a nine volt battery is a group of
    small cells. Individual cells like C cell or D cell or AA or AAA
    cell got called "battery" by idiots in the '60s and beyond until
    Webster finally "adopted" battery as meaning any DC power source.
    Another place where America's folks got the dumbed down version and
    now they are all that way.

    But in this case... These are individual cells arrayed together to
    form a battery. And individual cells can be and likey are
    temperature monitored but likely would not "let you monitor" it. It
    is internal. Part of the charge/discharge "watchdog" circuitry.

    On the Chevy Volt you can monitor the voltage of every individual cell
    with any OB2 app, don't know about individual cell temperature or
    whether that's even relevant information for the ECU, maybe not.

    Individual cell temperature is surely monitored internal to the battery
    by the battery controller and if something's seriously amiss it'll flag
    the ECU and report some cryptic battery-related fault code to the user

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Anthony William Sloman@21:1/5 to John Doe on Mon Jun 20 06:29:58 2022
    On Monday, June 20, 2022 at 5:09:38 AM UTC+2, John Doe wrote:
    Seems to me that is an important question, no matter what alleged device protection there is.

    I would want to know what the highest INDIVIDUAL battery temperature is. I would want an alarm when any battery reaches X degrees.

    Doesn't matter how many batteries there are. The more batteries, the more important for the driver to know what's going on.

    A battery is a battery of cells. The cell is a component with two different electrodes at each end, and a battery of cells is built up out of an arbitrary number of individual cells connected in parallel and in series.

    It's very helpful to know the temperature of the cell in the middle of the battery - it's mostly going to be the hottest cell in the assembly.
    If there is variation between individual cells you may get hotspots elsewhere, and four more sensor arranged as tetrahedron around the centre can let you pick this up.

    I suppose they do not keep track of individual battery temperature, but maybe they should. I would want that. Too many batteries to keep track of? Then too risky.

    The temperature if an individual cell is determined both by the heat being generated in that cell and the heat being generated in adjacent cells.
    The temperature of the central cell is determined by the thermal gradient from the central cell out to cells on the periphery of the battery, who have to dissipate the heat they generate, and the heat generated by all the cells in the layers below them.

    Monitoring the temperature of individual cells would probably be an overkill, but monitoring the half-way points on the thermal gradients could well make sense.

    Flyguy has already posted idiotic misconceptions about this sort of stuff. I've suggested that you aren't quite a stupid as he is, but it's arguing precedence between a flea and louse.

    --
    Bill Sloman, Sydney

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From jlarkin@highlandsniptechnology.com@21:1/5 to bitrex on Mon Jun 20 07:39:56 2022
    On Mon, 20 Jun 2022 09:12:59 -0400, bitrex <user@example.net> wrote:

    On 6/20/2022 5:52 AM, DecadentLinuxUserNumeroUno@decadence.org wrote:
    John Doe <always.look@message.header> wrote in
    news:t8oodb$jl3$1@dont-email.me:

    Seems to me that is an important question, no matter what alleged
    device protection there is.

    I would want to know what the highest INDIVIDUAL battery
    temperature is. I would want an alarm when any battery reaches X
    degrees.

    Doesn't matter how many batteries there are. The more batteries,
    the more important for the driver to know what's going on.

    I suppose they do not keep track of individual battery
    temperature, but maybe they should. I would want that. Too many
    batteries to keep track of? Then too risky.


    They are called cells. A group of cells is called a battery.

    It was always that way. Even a nine volt battery is a group of
    small cells. Individual cells like C cell or D cell or AA or AAA
    cell got called "battery" by idiots in the '60s and beyond until
    Webster finally "adopted" battery as meaning any DC power source.
    Another place where America's folks got the dumbed down version and
    now they are all that way.

    But in this case... These are individual cells arrayed together to
    form a battery. And individual cells can be and likey are
    temperature monitored but likely would not "let you monitor" it. It
    is internal. Part of the charge/discharge "watchdog" circuitry.

    On the Chevy Volt you can monitor the voltage of every individual cell
    with any OB2 app, don't know about individual cell temperature or
    whether that's even relevant information for the ECU, maybe not.

    Individual cell temperature is surely monitored internal to the battery
    by the battery controller and if something's seriously amiss it'll flag
    the ECU and report some cryptic battery-related fault code to the user

    A Tesla has 3k to over 6k cells, depending on model. I doubt they have thousands of temp sensors.



    --

    Anybody can count to one.

    - Robert Widlar

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Ed Lee@21:1/5 to John Doe on Mon Jun 20 10:10:24 2022
    On Sunday, June 19, 2022 at 8:09:38 PM UTC-7, John Doe wrote:
    Seems to me that is an important question, no matter what alleged device protection there is.

    I would want to know what the highest INDIVIDUAL battery temperature is. I would want an alarm when any battery reaches X degrees.

    Doesn't matter how many batteries there are. The more batteries, the more important for the driver to know what's going on.

    I suppose they do not keep track of individual battery temperature, but maybe they should. I would want that. Too many batteries to keep track of? Then too risky.

    There are four temperature sensors for the Leaf. The highest temperature tends to be at the back seat stack. The danger zone is 120C.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From bitrex@21:1/5 to jlarkin@highlandsniptechnology.com on Mon Jun 20 18:20:41 2022
    On 6/20/2022 10:39 AM, jlarkin@highlandsniptechnology.com wrote:
    On Mon, 20 Jun 2022 09:12:59 -0400, bitrex <user@example.net> wrote:

    On 6/20/2022 5:52 AM, DecadentLinuxUserNumeroUno@decadence.org wrote:
    John Doe <always.look@message.header> wrote in
    news:t8oodb$jl3$1@dont-email.me:

    Seems to me that is an important question, no matter what alleged
    device protection there is.

    I would want to know what the highest INDIVIDUAL battery
    temperature is. I would want an alarm when any battery reaches X
    degrees.

    Doesn't matter how many batteries there are. The more batteries,
    the more important for the driver to know what's going on.

    I suppose they do not keep track of individual battery
    temperature, but maybe they should. I would want that. Too many
    batteries to keep track of? Then too risky.


    They are called cells. A group of cells is called a battery.

    It was always that way. Even a nine volt battery is a group of
    small cells. Individual cells like C cell or D cell or AA or AAA
    cell got called "battery" by idiots in the '60s and beyond until
    Webster finally "adopted" battery as meaning any DC power source.
    Another place where America's folks got the dumbed down version and
    now they are all that way.

    But in this case... These are individual cells arrayed together to
    form a battery. And individual cells can be and likey are
    temperature monitored but likely would not "let you monitor" it. It
    is internal. Part of the charge/discharge "watchdog" circuitry.

    On the Chevy Volt you can monitor the voltage of every individual cell
    with any OB2 app, don't know about individual cell temperature or
    whether that's even relevant information for the ECU, maybe not.

    Individual cell temperature is surely monitored internal to the battery
    by the battery controller and if something's seriously amiss it'll flag
    the ECU and report some cryptic battery-related fault code to the user

    A Tesla has 3k to over 6k cells, depending on model. I doubt they have thousands of temp sensors.



    The Model S a least looks to use the BQ76PL536:

    <https://circuitdigest.com/article/tesla-model-s-battery-system-an-engineers-perspective>

    as a macrocell controller, looks like it can likely at least detect
    overtemp at the macrocell level and throw a fault as that feature seems
    built into the controller:

    <https://www.ti.com/product/BQ76PL536>>

    I believe there's also a number of temperature sensors for the coolant
    loop like 32 or 64 or something, coolant loop controller doesn't need to
    know cell temperature at the 3-6 cell level of granularity to work OK

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Doe@21:1/5 to Ed Lee on Mon Jun 20 23:08:12 2022
    Ed Lee <edward.ming.lee@gmail.com> wrote:

    John Doe wrote:

    Seems to me that is an important question, no matter what alleged
    device protection there is.

    I would want to know what the highest INDIVIDUAL battery temperature
    is. I would want an alarm when any battery reaches X degrees.

    Doesn't matter how many batteries there are. The more batteries, the
    more important for the driver to know what's going on.

    I suppose they do not keep track of individual battery temperature, but
    maybe they should. I would want that. Too many batteries to keep track
    of? Then too risky.

    There are four temperature sensors for the Leaf. The highest
    temperature tends to be at the back seat stack. The danger zone is
    120C.

    The driver controlled car seat warmer must be one of the best inventions
    ever, leading to the funnest conversations.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Edward Hernandez@21:1/5 to All on Mon Jun 20 23:28:38 2022
    XPost: free.spam

    Troll Doe stated the following in message-id
    <svsh05$lbh$5@dont-email.me>
    (http://al.howardknight.net/?ID=164904625100) posted Fri, 4 Mar 2022
    08:01:09 -0000 (UTC):

    Compared to other regulars, Bozo contributes practically nothing
    except insults to this group.

    Yet, since Wed, 5 Jan 2022 04:10:38 -0000 (UTC) Troll Doe's post ratio
    to USENET (**) has been 62.0% of its posts contributing "nothing except insults" to USENET.

    ** Since Wed, 5 Jan 2022 04:10:38 -0000 (UTC) Troll Doe has posted at
    least 2008 articles to USENET. Of which 173 have been pure insults and
    1071 have been Troll Doe "troll format" postings.

    The John Dope troll stated the following in message-id <sdhn7c$pkp$4@dont-email.me>:

    The troll doesn't even know how to format a USENET post...

    And the John Dope troll stated the following in message-id <sg3kr7$qt5$1@dont-email.me>:

    The reason Bozo cannot figure out how to get Google to keep from
    breaking its lines in inappropriate places is because Bozo is
    CLUELESS...

    And yet, the clueless John Dope troll has itself posted yet another
    incorrectly formatted USENET posting on Mon, 20 Jun 2022 23:27:17 -0000
    (UTC) in message-id <t8qvok$u6p$8@dont-email.me>.

    This posting is a public service announcement for any google groups
    readers who happen by to point out that John Doe does not even follow
    the rules it uses to troll other posters.

    tg4qUkyWSp+y

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Doe@21:1/5 to Anthony William Sloman on Mon Jun 20 23:27:17 2022
    XPost: free.spam

    From Merriam-Webster...

    battery: a single cell that furnishes electric current
    "need to replace the flashlight's batteries"

    At least here in America... That's common, to call one battery in a group
    of batteries a "battery". When we replace the batteries in a device, no
    matter how many there are, we say we are replacing "batteries", not the "cells".

    At least here in America... If one wanted to monitor the temperature of
    each battery in a flashlight battery compartment, saying "I want to
    monitor INDIVIDUAL battery temperatures" is perfectly acceptable English.

    I'm not bashing the bashers for calling them "cells".

    Language is for communication and NOBODY misunderstands what I'm saying.




    No point in discussing anything with Bill "Bozo" Sloman, the Australian
    troll. Bozo is an incessant liar who cannot be reasoned with. Its fiction
    never ends.

    "the user has posted under the same name in other places, so not
    nym-shifting" (Bozo sucks at logic)

    "the Mueller investigation was about Trump only because Trump made it so"
    (Bozo being Bozo)

    "the concepts "male" and "female" are essentially social constructions"
    (Bozo is a textbook cannibal leftist)


    --
    Anthony William Sloman <bill.sloman@ieee.org> wrote:

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    Subject: Re: OT: Do electric cars let you monitor INDIVIDUAL battery temperature?
    From: Anthony William Sloman <bill.sloman@ieee.org>
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    On Monday, June 20, 2022 at 5:09:38 AM UTC+2, John Doe wrote:
    Seems to me that is an important question, no matter what alleged device
    protection there is.

    I would want to know what the highest INDIVIDUAL battery temperature is. I >> would want an alarm when any battery reaches X degrees.

    Doesn't matter how many batteries there are. The more batteries, the more
    important for the driver to know what's going on.

    A battery is a battery of cells. The cell is a component with two different electrodes at each end, and a battery of cells is built up out of an arbitrary number of individual cells connected in parallel and in series.

    It's very helpful to know the temperature of the cell in the middle of the battery - it's mostly going to be the hottest cell in the assembly.
    If there is variation between individual cells you may get hotspots elsewhere, and four more sensor arranged as tetrahedron around the centre can let you pick this up.

    I suppose they do not keep track of individual battery temperature, but maybe
    they should. I would want that. Too many batteries to keep track of? Then too
    risky.

    The temperature if an individual cell is determined both by the heat being generated in that cell and the heat being generated in adjacent cells.
    The temperature of the central cell is determined by the thermal gradient from the central cell out to cells on the periphery of the battery, who have to dissipate the heat they generate, and the heat generated by all the cells in the layers below them.

    Monitoring the temperature of individual cells would probably be an overkill, but monitoring the half-way points on the thermal gradients could well make sense.

    Flyguy has already posted idiotic misconceptions about this sort of stuff. I've suggested that you aren't quite a stupid as he is, but it's arguing precedence between a flea and louse.

    --
    Bill Sloman, Sydney



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  • From DecadentLinuxUserNumeroUno@decadenc@21:1/5 to John Dope on Tue Jun 21 01:21:17 2022
    John Dope <always.look@message.header> wrote in news:t8qvok$u6p$8@dont-email.me:

    At least here in America... That's common, to call one battery in
    a group of batteries a "battery".

    If you had enough brains to have read my post, I detailed where
    idiots primarily in the US starting in the '60s started incorrectly
    calling a single cell a battery.

    It got adopted by Webster and both the term "cell" and "battery" are
    now considered correct, worldwide, even for units which are singular.

    It is common for idiots like John Dope. Same type of idiot that
    refers to a tissue as "kleenex".

    Poorly raised word challenged AND discipline challenged (that follow
    ups stupid shit you pull).

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  • From John Doe@21:1/5 to DecadentLinuxUserNumeroUno@decadenc on Tue Jun 21 01:36:09 2022
    I defined a common English word (sense), that Always Wrong uses every day.

    Must suck to feel such hostility towards others. If it isn't me, it's
    somebody else, as Always Wrong always does in this group for so many
    years...



    DecadentLinuxUserNumeroUno@decadence.org wrote:

    John Dope <always.look@message.header> wrote in news:t8qvok$u6p$8@dont-email.me:

    At least here in America... That's common, to call one battery in
    a group of batteries a "battery".

    If you had enough brains to have read my post, I detailed where
    idiots primarily in the US starting in the '60s started incorrectly
    calling a single cell a battery.

    It got adopted by Webster and both the term "cell" and "battery" are
    now considered correct, worldwide, even for units which are singular.

    It is common for idiots like John Dope. Same type of idiot that
    refers to a tissue as "kleenex".

    Poorly raised word challenged AND discipline challenged (that follow
    ups stupid shit you pull).

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  • From Anthony William Sloman@21:1/5 to John Doe on Tue Jun 21 05:54:26 2022
    On Tuesday, June 21, 2022 at 1:27:23 AM UTC+2, John Doe wrote:
    Anthony William Sloman <bill....@ieee.org> wrote:
    On Monday, June 20, 2022 at 5:09:38 AM UTC+2, John Doe wrote:
    Seems to me that is an important question, no matter what alleged device >> protection there is.

    I would want to know what the highest INDIVIDUAL battery temperature is. I
    would want an alarm when any battery reaches X degrees.

    Doesn't matter how many batteries there are. The more batteries, the more >> important for the driver to know what's going on.

    A battery is a battery of cells. The cell is a component with two different electrodes at each end, and a battery of cells is built up out of an arbitrary number of individual cells connected in parallel and in series.

    It's very helpful to know the temperature of the cell in the middle of the battery - it's mostly going to be the hottest cell in the assembly.
    If there is variation between individual cells you may get hotspots elsewhere, and four more sensor arranged as tetrahedron around the centre can let you pick this up.

    I suppose they do not keep track of individual battery temperature, but maybe
    they should. I would want that. Too many batteries to keep track of? Then too
    risky.

    The temperature if an individual cell is determined both by the heat being generated in that cell and the heat being generated in adjacent cells.
    The temperature of the central cell is determined by the thermal gradient from the central cell out to cells on the periphery of the battery, who have to dissipate the heat they generate, and the heat generated by all the cells in the layers below
    them.

    Monitoring the temperature of individual cells would probably be an overkill, but monitoring the half-way points on the thermal gradients could well make sense.

    Flyguy has already posted idiotic misconceptions about this sort of stuff. I've suggested that you aren't quite a stupid as he is, but it's arguing precedence between a flea and louse.

    From Merriam-Webster...
    battery: a single cell that furnishes electric current
    "need to replace the flashlight's batteries"

    Typical John Doe - he chops the test down to the fragment that fits his idea. Including a bit more of the original text shows him up

    https://www.merriam-webster.com/dictionary/battery

    4a : a combination of apparatus for producing a single electrical effect a battery of generators
    b : a group of two or more cells (see cell sense 5) connected together to furnish electric current also : a single cell that furnishes electric current need to replace the flashlight's batteries
    c batteries plural : level of energy or enthusiasm needs a vacation to recharge her batteries

    At least here in America... That's common, to call one battery in a group
    of batteries a "battery". When we replace the batteries in a device, no matter how many there are, we say we are replacing "batteries", not the "cells".

    It maybe be common, but - historically speaking - it is wrong.

    At least here in America... If one wanted to monitor the temperature of
    each battery in a flashlight battery compartment, saying "I want to
    monitor INDIVIDUAL battery temperatures" is perfectly acceptable English.

    Not to me it isn't. It would also be a moronic over-kill

    I'm not bashing the bashers for calling them "cells".

    Language is for communication and NOBODY misunderstands what I'm saying.

    It's not difficult to work out that you have never got anything useful to say. You do communicate your idiocy remarkably reliably, though not as concisely as we would prefer.

    <snip>

    --
    Bill Sloman, Sydney

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  • From Fred Bloggs@21:1/5 to jla...@highlandsniptechnology.com on Tue Jun 21 06:17:15 2022
    On Monday, June 20, 2022 at 10:40:10 AM UTC-4, jla...@highlandsniptechnology.com wrote:
    On Mon, 20 Jun 2022 09:12:59 -0400, bitrex <us...@example.net> wrote:

    On 6/20/2022 5:52 AM, DecadentLinux...@decadence.org wrote:
    John Doe <alway...@message.header> wrote in
    news:t8oodb$jl3$1...@dont-email.me:

    Seems to me that is an important question, no matter what alleged
    device protection there is.

    I would want to know what the highest INDIVIDUAL battery
    temperature is. I would want an alarm when any battery reaches X
    degrees.

    Doesn't matter how many batteries there are. The more batteries,
    the more important for the driver to know what's going on.

    I suppose they do not keep track of individual battery
    temperature, but maybe they should. I would want that. Too many
    batteries to keep track of? Then too risky.


    They are called cells. A group of cells is called a battery.

    It was always that way. Even a nine volt battery is a group of
    small cells. Individual cells like C cell or D cell or AA or AAA
    cell got called "battery" by idiots in the '60s and beyond until
    Webster finally "adopted" battery as meaning any DC power source.
    Another place where America's folks got the dumbed down version and
    now they are all that way.

    But in this case... These are individual cells arrayed together to
    form a battery. And individual cells can be and likey are
    temperature monitored but likely would not "let you monitor" it. It
    is internal. Part of the charge/discharge "watchdog" circuitry.

    On the Chevy Volt you can monitor the voltage of every individual cell >with any OB2 app, don't know about individual cell temperature or
    whether that's even relevant information for the ECU, maybe not.

    Individual cell temperature is surely monitored internal to the battery
    by the battery controller and if something's seriously amiss it'll flag >the ECU and report some cryptic battery-related fault code to the user
    A Tesla has 3k to over 6k cells, depending on model. I doubt they have thousands of temp sensors.

    Analog Devices has been aggressively pursuing this market for at least the past ten years that I know of. The difference in capability between ten years ago and latest developments is as stark as night and day. And it looks like they've been pretty
    successful at capturing the market. Just like every airbag system in the world used their accelerometer line, for a while anyway.

    https://www.analog.com/en/applications/markets/automotive-pavilion-home/vehicle-electrification/battery-management-systems-bms.html

    EVs are just one part of their business. They're out to capture every battery application out there. They see the stringent government safety regulations coming.

    https://www.analog.com/en/product-category/battery-management.html

    Of course, the lower class, ignorant, uneducable, sub-normal iq's out there consider this post and its information content to be "total bullshit."





    --

    Anybody can count to one.

    - Robert Widlar

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  • From jlarkin@highlandsniptechnology.com@21:1/5 to bloggs.fredbloggs.fred@gmail.com on Tue Jun 21 07:19:49 2022
    On Tue, 21 Jun 2022 06:17:15 -0700 (PDT), Fred Bloggs <bloggs.fredbloggs.fred@gmail.com> wrote:

    On Monday, June 20, 2022 at 10:40:10 AM UTC-4, jla...@highlandsniptechnology.com wrote:
    On Mon, 20 Jun 2022 09:12:59 -0400, bitrex <us...@example.net> wrote:

    On 6/20/2022 5:52 AM, DecadentLinux...@decadence.org wrote:
    John Doe <alway...@message.header> wrote in
    news:t8oodb$jl3$1...@dont-email.me:

    Seems to me that is an important question, no matter what alleged
    device protection there is.

    I would want to know what the highest INDIVIDUAL battery
    temperature is. I would want an alarm when any battery reaches X
    degrees.

    Doesn't matter how many batteries there are. The more batteries,
    the more important for the driver to know what's going on.

    I suppose they do not keep track of individual battery
    temperature, but maybe they should. I would want that. Too many
    batteries to keep track of? Then too risky.


    They are called cells. A group of cells is called a battery.

    It was always that way. Even a nine volt battery is a group of
    small cells. Individual cells like C cell or D cell or AA or AAA
    cell got called "battery" by idiots in the '60s and beyond until
    Webster finally "adopted" battery as meaning any DC power source.
    Another place where America's folks got the dumbed down version and
    now they are all that way.

    But in this case... These are individual cells arrayed together to
    form a battery. And individual cells can be and likey are
    temperature monitored but likely would not "let you monitor" it. It
    is internal. Part of the charge/discharge "watchdog" circuitry.

    On the Chevy Volt you can monitor the voltage of every individual cell
    with any OB2 app, don't know about individual cell temperature or
    whether that's even relevant information for the ECU, maybe not.

    Individual cell temperature is surely monitored internal to the battery
    by the battery controller and if something's seriously amiss it'll flag
    the ECU and report some cryptic battery-related fault code to the user
    A Tesla has 3k to over 6k cells, depending on model. I doubt they have
    thousands of temp sensors.

    Analog Devices has been aggressively pursuing this market for at least the past ten years that I know of. The difference in capability between ten years ago and latest developments is as stark as night and day. And it looks like they've been pretty
    successful at capturing the market. Just like every airbag system in the world used their accelerometer line, for a while anyway.

    https://www.analog.com/en/applications/markets/automotive-pavilion-home/vehicle-electrification/battery-management-systems-bms.html

    EVs are just one part of their business. They're out to capture every battery application out there. They see the stringent government safety regulations coming.

    https://www.analog.com/en/product-category/battery-management.html

    Of course, the lower class, ignorant, uneducable, sub-normal iq's out there consider this post and its information content to be "total bullshit."



    You were doing fine right up to the last sentence. It's
    self-fulfilling.





    --

    Anybody can count to one.

    - Robert Widlar

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  • From John Doe@21:1/5 to All on Tue Jun 21 23:15:59 2022
    Bozo LIES about what Merriam-Webster says.

    Merriam-Webster says "a group of two or more cells" then it continues
    with...

    ALSO: a single cell that furnishes electric current
    "need to replace the flashlight's BATTERIES"

    At least here in America, a "battery compartment" is full of BATTERIES
    not CELLS.

    https://care.hallmark.com/s/article/How-to-clean-a-battery-compartment-containing-corroded-alkaline-batteries

    1. Put on disposable protective gloves
    2. Open the BATTERY compartment
    3. Carefully remove the damaged BATTERIES aand place each BATTERY in a
    separate sealable plastic bag
    ...
    8. Dry the contacts with a disposable towel or fresh cotton swab and place
    new BATTERIES iinto the compartment

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  • From corvid@21:1/5 to All on Tue Jun 21 17:37:57 2022
    6/21/22, 16:15, John Dope stammers:
    Bozo LIES about what Merriam-Webster says.

    Merriam-Webster says "a group of two or more cells" then it
    continues with...

    ALSO: a single cell that furnishes electric current "need to replace
    the flashlight's BATTERIES"

    Just an "also". didn't even merit capitalizing.
    And it's down at 4b! The common meaning of battery should be found at
    the top, 1a. M-W thinks it has something to do with you.

    At least here in America, a "battery compartment" is full of
    BATTERIES not CELLS.

    Not cells now? Where does anyone else say so?

    https://care.hallmark.com/s/article/How-to-clean-a-battery-compartment-containing-corroded-alkaline-batteries

    1. Put on disposable protective gloves 2. Open the BATTERY
    compartment 3. Carefully remove the damaged BATTERIES aand place each
    BATTERY in a separate sealable plastic bag ... 8. Dry the contacts
    with a disposable towel or fresh cotton swab and place new BATTERIES
    iinto the compartment

    Hallmark?? You don't get to use Hallmark. No.


    https://www.dictionary.com/browse/battery

    a combination of two or more cells electrically connected to work
    together to produce electric energy.

    two or more primary cells connected together, usually in series, to
    provide a source of electric current

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  • From Anthony William Sloman@21:1/5 to John Doe on Wed Jun 22 03:59:50 2022
    On Wednesday, June 22, 2022 at 1:16:06 AM UTC+2, John Doe wrote:
    Bozo LIES about what Merriam-Webster says.

    How? I posted a direct link to what Merriam-Webster said, then cut and pasted the relevant bit of text, just enough to make it clear that you had been text-chopping. You've snipped it, which is lying by omission. I've put it back.

    https://www.merriam-webster.com/dictionary/battery

    At least here in America, a "battery compartment" is full of BATTERIES
    not CELLS.

    You don't buy the cells - you buy the battery which mostly turns out to be assembled out of cells by the manufacturer.

    https://care.hallmark.com/s/article/How-to-clean-a-battery-compartment-containing-corroded-alkaline-batteries

    The fact that barely literate American manufacturers don't express themselves clearly isn't exactly relevant.

    --
    Bill Sloman, Sydney

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  • From John Doe@21:1/5 to All on Wed Jun 22 20:38:26 2022
    From Google's search engine...

    "batteries in a flashlight"
    About 99,800 results
    "cells in a flashlight"
    About 46,200 results

    "batteries in a battery pack"
    About 366,000 results
    "cells in a battery pack"
    About 167,000 results

    "batteries in a battery holder"
    About 48,900 results
    "cells in a battery holder"
    About 12,300 results

    I would never bash the bashers for using "cell" instead of "battery",
    because I'm not petty like that. Language is for communication and
    EVERYBODY knows what I'm talking about.

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  • From John Walliker@21:1/5 to John Doe on Wed Jun 22 14:14:33 2022
    On Wednesday, 22 June 2022 at 21:38:31 UTC+1, John Doe wrote:
    From Google's search engine...

    "batteries in a flashlight"
    About 99,800 results
    "cells in a flashlight"
    About 46,200 results

    "batteries in a battery pack"
    About 366,000 results
    "cells in a battery pack"
    About 167,000 results

    "batteries in a battery holder"
    About 48,900 results
    "cells in a battery holder"
    About 12,300 results

    I would never bash the bashers for using "cell" instead of "battery",
    because I'm not petty like that. Language is for communication and
    EVERYBODY knows what I'm talking about.

    Don't forget where the word battery came from:

    "Historically the term "battery" referred to a cluster of cannon in action as a group, either in a temporary field position during a battle or at the siege of a fortress or a city."

    https://en.wikipedia.org/wiki/Artillery_battery

    John

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  • From Anthony William Sloman@21:1/5 to John Doe on Thu Jun 23 05:34:27 2022
    On Wednesday, June 22, 2022 at 10:38:31 PM UTC+2, John Doe wrote:
    From Google's search engine...

    <snip>

    I would never bash the bashers for using "cell" instead of "battery", because I'm not petty like that.

    No. Just much too stupid to get the point.

    Language is for communication and EVERYBODY knows what I'm talking about.

    All you ever talk about is how stupid you are. You clearly don't realise this, but this is the only message you can communicate.

    The point about using "cell" in your message was that it would have let you be specific about the element whose temperature you were measuring.
    If a battery is a collection of cells, it is lot easier to talk about measuring the temperature of a specific cell than it is to talk about measure the temperature of an individual "battery" inside an assembly of batteries (also called a battery).
    Communication is designed to make life easier for the reader, but that's a higher level communication than you are equipped to process.

    --
    Bill Sloman, Sydney

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