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Thread: EV general discussion

  1. #2691
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    Quote Originally Posted by RANDLOVER View Post
    Which I think is great for local jobs (actually not just me, but Saul Griffith too, Saul Griffith - Wikipedia, and Rewiring Australia ) and the local economy. Not just during the construction phase but also for servicing, maintenance and repairs.
    Hopefully they can find suitably qualified people to do all this work.

    I wonder who is going to end up paying for it all?

  2. #2692
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    Yes right,should be fine,just destroy the charging infastructure,and those Tanks won't be going far.Easy as.

    At least with fuel,it can come from lots of different places,and carried in different ways.

    Anyway,oh well,some will have to learn the hard way

    Lots of dreamers around is correct.

  3. #2693
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    Quote Originally Posted by NavyDiver View Post
    "GM’s state-of-the-art Ultium battery, a new architecture that will find its way into the dozens of electric vehicles the company plans to launch in the coming years. The 2022 GMC Hummer EV is the first production vehicle to feature Ultium, and its 212.7 kWh battery pack weighs 1.33 metric tons.
    So what's all the fuss about with this battery architecture? A 100KWh Tesla battery weighs 625Kg so almost the exact same power to weight ratio as the Tesla battery - are they just playing catch up or am I missing something?
    If you need to contact me please email homestarrunnerau@gmail.com - thanks - Gav.

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    Quote Originally Posted by scarry View Post
    Hopefully they can find suitably qualified people to do all this work.

    I wonder who is going to end up paying for it all?
    For Tesla charging stations, Tesla have been footing the bill for stand alone charging stations but when they are part of a shopping centre, etc then the Power upgrade costs are paid for by the Shopping centre (so ultimaltey the consumer as rents etc will all be impaced by this - last one I was involved with, the new HV sub, cabling and switchboard set the centre back $740,000 and Tesla pay for the chargers and installation costs from the switchboard. So sit back and relax knowing you're paying for Tesla EV's to charge at your local Shopping Centre.
    If you need to contact me please email homestarrunnerau@gmail.com - thanks - Gav.

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    Quote Originally Posted by Homestar View Post
    4x2 petrol Hilux single cab with Ali tray is 1490Kg.

    Why are we comparing a car to a 4WD? Tesla is an around town car same as a Corolla etc so I would be making any comparison against other similar cars.
    so, would you consider a falcon sedan to be the same as a Corolla? Because a Tesla is the same size as a falcon.. Which I note was less than 200kg lighter than the tesla, empty.
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    EV general discussion

    Quote Originally Posted by Captain_Rightfoot View Post
    so, would you consider a falcon sedan to be the same as a Corolla?
    In a word - yes. Both sedans that no one really wants to drive. 🤣
    Last edited by Homestar; 6th September 2023 at 05:26 PM.
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    So ran into a customer of ours,who bought a BMW EV a few weeks ago.
    He is finding it difficult to get used to,compared with the last ICE BMW.

    Gets 5 yrs of free charging,as long as he uses a certain charger,luckily there is one near him.
    But no doubt there is a guesstimate on how much power he will use and it is hidden in the vehicle cost.
    Forty five minutes from 30% to 90%, which equates to a week of driving for him.
    I forgot to ask what range he gets out of it.

    BMW have said only charge it to 80% as that is better for the battery,but he likes to go to 90.

    How the battery condition is won't really worry him as he changes vehicles over every 3 to 5 yrs.

    Which brings up another point,the second hand market for EVs is going to be a nightmare,as some batteries will be in much in better condition than others.Maybe developing a way to do an accurate test might be the go.



    So if it is only charged to 80%, that is 20% of range already gone,then allow at least 10% for margin,no one wants to run out,so down to around 70% of rated range.
    And as we know the ‘real actual range’ will be even less.

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    Quote Originally Posted by scarry View Post
    So ran into a customer of ours,who bought a BMW EV a few weeks ago.
    He is finding it difficult to get used to,compared with the last ICE BMW.

    Gets 5 yrs of free charging,as long as he uses a certain charger,luckily there is one near him.
    But no doubt there is a guesstimate on how much power he will use and it is hidden in the vehicle cost.
    Forty five minutes from 30% to 90%, which equates to a week of driving for him.
    I forgot to ask what range he gets out of it.

    BMW have said only charge it to 80% as that is better for the battery,but he likes to go to 90.

    How the battery condition is won't really worry him as he changes vehicles over every 3 to 5 yrs.

    Which brings up another point,the second hand market for EVs is going to be a nightmare,as some batteries will be in much in better condition than others.Maybe developing a way to do an accurate test might be the go.



    So if it is only charged to 80%, that is 20% of range already gone,then allow at least 10% for margin,no one wants to run out,so down to around 70% of rated range.
    And as we know the ‘real actual range’ will be even less.
    The only way to test a battery is to run a full controlled charge and discharge cycle - we do this with our batteries at work every few months. The baby 9.6KWH batteries take around 2 days to test and return a result and the 45KWH batteries take over a week. This is with a commercial tester - I’m sure there are different ones that can do the discharge quicker as you’ll need to with an EV battery. Maybe some enterprising individual will start a business to test them and issue a report the owners can use when they sell a car on - it’s the only way I’d look at buying a secondhand EV.
    If you need to contact me please email homestarrunnerau@gmail.com - thanks - Gav.

  9. #2699
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    I don't know if they do it yet in all cases, but I think we can expect this sort of information to be produced by a vehicle's battery management system. Maybe there needs to be some sort of standard to make this available, not only to would be purchasers, but to the owner who is needing to know whether to keep the vehicle or replace it?
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    Quote Originally Posted by Homestar View Post
    The only way to test a battery is to run a full controlled charge and discharge cycle - we do this with our batteries at work every few months. The baby 9.6KWH batteries take around 2 days to test and return a result and the 45KWH batteries take over a week. This is with a commercial tester - I’m sure there are different ones that can do the discharge quicker as you’ll need to with an EV battery. Maybe some enterprising individual will start a business to test them and issue a report the owners can use when they sell a car on - it’s the only way I’d look at buying a secondhand EV.
    Maybe now is the time to buy as not many superchargers around so most would be charged at home.
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