this post was submitted on 21 Aug 2025
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Don't forget the 80% rule! Because those ratings are made for shorter periods of time drawing electricity, and cars usually charge for hours, you need to charge at 80% of the circuit rating. So really you'll charge at 120V x 12A =1.4kW. Not only that, but if you have anything else on that circuit you need to leave room for that too. My car defaults to 8A on level 1 unless you tell it to do 12, in which case you get just under a kilowatt.