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Running costs of electric cars vs petrol cars according to size

Arran Cameron
15 year old 7 series BMWs sell for pocket money prices because of the low demand for such cars. Anybody who can afford to run one can probably afford to buy a much younger 7 series. However, its easy to find a buyer who will pay a handsome amount of money for a 15 year old VW Polo in good nick due to the low running costs of this car.


How does the difference in running costs between a large electric car and a small electric car compare with the difference in running costs between a large petrol car and a small petrol car?
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    TonyM:

    This is a strong argument for standardization of battery pack formats, electrical characteristics, connections etc. across brands, so that for long journeys recharge could simply be by swapping your depleted battery for a fully charged one....(snip!)


    Well the motorbike folk are ahead of you    honda, yamaha, kawasaki, suzuki standardise electric bike batteries


    and also

    "universal" electric motorcycle standard - though the advert also shows a golf buggy...


    Now all we need is a few cheaper car makers to re-use these electric jerry cans ('mobile power pack" apparently the word 'battery' is so old fashioned... ) in some sort of array, at perhaps 48V, and 20Ahr ~ 1kWh capacity nominal  each you may need  groups of 20 or more for typical car, but nothing that could not be swapped out by forklift or something like an engine hoist, comparable at worst to changing a clutch or gearbox certainly. (and both are long but not difficult DIY jobs, at least in my experience)


    Mike.


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  • 0
    TonyM:

    This is a strong argument for standardization of battery pack formats, electrical characteristics, connections etc. across brands, so that for long journeys recharge could simply be by swapping your depleted battery for a fully charged one....(snip!)


    Well the motorbike folk are ahead of you    honda, yamaha, kawasaki, suzuki standardise electric bike batteries


    and also

    "universal" electric motorcycle standard - though the advert also shows a golf buggy...


    Now all we need is a few cheaper car makers to re-use these electric jerry cans ('mobile power pack" apparently the word 'battery' is so old fashioned... ) in some sort of array, at perhaps 48V, and 20Ahr ~ 1kWh capacity nominal  each you may need  groups of 20 or more for typical car, but nothing that could not be swapped out by forklift or something like an engine hoist, comparable at worst to changing a clutch or gearbox certainly. (and both are long but not difficult DIY jobs, at least in my experience)


    Mike.


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