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Installed a 40amp car charger (slrpnk.net)
submitted 4 months ago by to c/diy@slrpnk.net
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Installed a 40amp circuit for the EVs after charging a PHEV for 5 years and a BEV truck for almost a year on a single 15amp circuit.

50ft x 8 AWG x 4 wires isn't cheap ($1.32/ft with tax), plus conduit, straps, breaker, wet location boxes and outlet cover and the extra cost for an EV rated outlet.

Wasn't room between the post and the garage door king stud for a flush mount box, oh well.

I'll pay the electrician for a proper hard-wired charger when we upgrade service and run it from the main panel instead.

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[–] 11 points 4 months ago (1 child)

For commutes of an average length you don't need more than a standard outlet if you leave the car plugged in when you're not using it. However, a benefit of a level 2 charger is that if you have time-based electricity rates, you can schedule the car to charge only when electricity is cheapest, and get more kWh in less time.

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

    The cars can do that though?

    Kia's scheduling is poor but functional.

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  • [–] 3 points 4 months ago

    Yes, but if you want all your power draw in this window you probably want more throughput. Plus if you do things other than commute it's nice to have the flexibility. I get by fine for my normal commute on 15a but if I do things outside of going to work and can't get a charger spot on my first day back from work it can be tight.

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  • [–] 1 point 4 months ago

    Yes, sorry if I wasn't clear. It's the car that does this, not the charger. But the reason you might want level 2 is that in the scheduled charging situation, level 1 might not have enough time to provide enough energy for your daily commute. (But even if you have e.g. 40 mile daily commute and can only charge 25 miles overnight, you might still be fine to make it to the weekend and make up the difference)

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