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[Technology Connections] Don't overthink electric car charging (we should be doing it differently) [52:12] (www.youtube.com)
submitted 4 months ago by to c/videos@lemmy.world
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[+] -22 points 4 months ago (6 children)

Sure, if you want it to take a week to fully charge.

120vac at max 15 or 20 amps is going to take forever to charge. That's why most car chargers are 230vac and 60amps.

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  • [–] 19 points 4 months ago (1 child)

    He addresses that. Most drivers will not be charging from empty, and overnight charging will be able to keep up. That's with an estimated 40m/day or less.

    Your individual usage could be higher.

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  • [–] 3 points 4 months ago (1 child)

    40 meters is a bit low, no?

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  • [–] 11 points 4 months ago (2 children)

    Charging from 0 to 100% really shouldn't be the goal here.

    Ideally you would be charging to about 80% for just daily use, and only going 100% if you are planning a longer trip.

    Unlike a gas car, you don't want to wait until it gets to 0% before you start charging it. Just plug it in when you get home and it'll recoup whatever you used that day.

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  • [–] 4 points 4 months ago (1 child)

    You dont want to do that in a gas car either. A lot of the impurities in the gas settle out to the bottom of the gas tank, if you run your vehicle low on gas its easier for that layer to be agitated and your engine takes those impurities instead.

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  • [–] 3 points 4 months ago

    I wonder if this could also be used kind of like flushing your hot water heater.

    If I run my car low consistently, agitate whatever is in there, wouldn't I eventually clear out most of it leaving less and less impurities?

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  • [–] 2 points 4 months ago

    My wife's electric car has been fine for us. It took about a month until we could get a level two charger installed at home. Until then, I had to drive her to a nearby town to leave her car for 6 hours to charge.

    However, our experience when we went on a road trip was less than pleasant. The first 300 km of our trip there were only two charging stations. We checked at the first one, but there was one car charging and another waiting, so we continued on. We arrived at our destination with about 50 km to spare.

    The next day we went to a level 3 charging station, but it was out of order. A nearby one had Tesla superchargers, but the other chargers only put out between 50 and 100 KV. It didn't matter, because the company's app refused to work for us.

    The next closest charging stations were closed, because it was Sunday.

    We managed to get to a station a little farther away, and it took about 90 minutes to charge the car.

    We don't live near a large city, so when there are charging stations, there is often a line of vehicles waiting, which puts the time to charge into hours. Equally bad, we never know until we get there how much time it will take.

    We live in Canada, so in the winter a full charge drops from over 500 km to about 300. If we have to travel anywhere, we are going to have to rent a gasoline car.

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