A few questions on EV's

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Heres Johnny

7,227 posts

124 months

Monday 9th December 2019
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Evanivitch said:
Dave Hedgehog said:
Heres Johnny said:
I believe the 50kw is based on 400v and 125a - and I believe the M3 has a lower voltage hence why you’re unlikely to see 50kw
M3 can peak charge at 250KW and sustain charge at 125KW
Of course, but if the charger is limited to 400V and 125A, and the car limited to 350V, then the charger probably isn't going to provide the additional current to allow 50kW charging.
Exactly... people prefer to be critical of 50kw charge points only giving say 45kw or lower without realising its a function of their own car.

Battery voltage dictates a lot of things and is why some batteries specs don't use a kwh capacity but an Ah capacity as the voltage is largely fixed (it does move a little with SoC but not a great deal).

M1C

1,833 posts

111 months

Monday 9th December 2019
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SWoll said:
NDNDNDND said:
SWoll said:
Quite a few around. Just been and charged our Model 3 P at a Polar 50kw charger which is located in our local Waitrose car park. Averaged about 45kw from 30-95% and then dropped to 10kw.

Watched the last 90 minutes of The Irishman on Netflix whilst I was there and left with 98% charge and 305 miles predicted range. smile
You sat in your car, on your own, for an hour and a half in a supermarket car park, watching Netflix?

Sounds like an episode of Black Mirror...
It was warm, comfortable, had a mug of tea and some biscuits with me and saved me about £10 on charging at home or £50 on fuelling an ICE car for the same range. The supermarket was closed anyway so the car park was empty.

When you've got teenagers in the house getting an hour and a half to yourself whilst saving money is a blessing and was planning on watching the same film whilst the wife and kids watched the I'm a Celebrity final anyway.

Don't knock it till you've tried it, was bliss. smile

Edited by SWoll on Monday 9th December 11:54
As a father of a 8 and 2 year old....i aspire to opportunities such as this!!! Well played, Sir!