• AA5B@lemmy.world
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    11 hours ago

    The way I explained it to my brother:

    • technically just plug in to an existing outlet will work. Even if you didn’t keep up every day, you would get tot the weekend and make it up then
    • but your garage already has a dryer outlet. Adapters are cheap and it will charge 4-5 times as fast
    • but 50a level 2 charger is the same size as a stove outlet. Maybe a little longer wire run, and the “outlet” is more expensive, but it’s well worth the cost for the freedom, the flexibility, the convenience … and may even add to your house value
      • Rivalarrival@lemmy.today
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        5 hours ago

        Can you cite a time stamp? I don’t want to watch a 30 minute video.

        I’m very curious where “42 amps max” comes from, as NEMA outlets are rated for 15A, 20A, 30A, 50A, or 60A. 42A is a rather oddball number; I’d like some context for it.

        Most dryer outlets are rated for 30A, NEMA 10-30, or 14-30.

        • KubeRoot@discuss.tchncs.de
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          2 hours ago

          Not the same person and cba to get a timestamp right now, but it’s the 80% rule - the electrical stuff isn’t designed to deliver the rated amperage continuously for hours on end, so for car charging, you’re apparently supposed to limit it to 80%. Now, 80% of 50 isn’t 42 but 40, so not sure if it’s a case of 80% not being a precise number or a mistake here, but it roughly checks out.

      • AA5B@lemmy.world
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        6 hours ago

        I believe dryer outlets are typically 30a@240v. That’s a nice step up than a standard outlet and simple math shows 4x the power of 15a@120v

        If you have one in your garage, then you already have an outlet that can do faster charging than a standard outlet.

        Just like you technically don’t need a 50a level 2 charger, you may not have to settle for a standard outlet. I bought a heavy duty extension cable with adapters for several different outlet types.