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Discussion in 'Model S: Battery & Charging' started by Cheburashka, Jan 5, 2020.
Can anyone explain this?
Car is plugged into 120V receptacle but is charging at 4kW or 3*12A.
Sounds like you were expecting something different ?
120V receptacle, 12A max. 1.4kW is the theoretical maximum.
119V X 12A is 1.428KW. How is 4KW possible? Are you on 3 phase power?!?
Yes - note the 3 next to 12 amps. You’re on a 3phase output. Where is this? (I’m going to guess an apartment building)
If I knew I wouldn't have asked. I have no idea how 4kW is possible. Maybe its a bug in the interface?
Read here... seems 3 phase does not work in the US?!? 120v is one HOT and one neutral (difference being 120v). 2 phase would be +120 and -120, causing 240v difference. 3 phase is three HOT and 1 neutral.
3 phase electric charging at home | Tesla
3 phase plug...
My garage wall plug. Same one I've always charged the car on.
Bug. Thinks its 3-phase. Just more software issues.
But is the battery really charging at 4KW rate? You can estimate by looking at how fast the pct goes up.
Is it just the app saying that? What does the car itself say? I assume that 3 means 3 phase, but would be weird for the app to calculate power instead of just using the power reported by the car.
Its not charging at that rate; if it were, the breaker would trip, or the house would burn down.
Yeah - software bug. Currently at 65%, set at 70%, and needs over 2 hours to add that 5 percent of range. Not 4kw charging
I’m getting the same issue, it’s charging at 8mph instead of 4mph on 120v. Also has a “3” next to the amps on the app, it says im getting 7/12a. It charged from 31 to 71 in 5 hours which IS 8mph. I’m not sure if I should trust it or not though. I’ll reset it in the morning and see what happened. We’re in the US so not sure if 3-phase is normal but this started after upgrading to 20.4.1. Anyone else getting this?