4kW charging on 120V

[Cheburashka]

Can anyone explain this?

Car is plugged into 120V receptacle but is charging at 4kW or 3*12A.

 

[Silicon Desert]

Sounds like you were expecting something different ?

 

[Cheburashka]

Sounds like you were expecting something different ?

120V receptacle, 12A max. 1.4kW is the theoretical maximum.

 

[eevee-fan]

119V X 12A is 1.428KW. How is 4KW possible? Are you on 3 phase power?!?

 

[gaswalla]

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)

 

[Cheburashka]

119V X 12A is 1.428KW. How is 4KW possible? Are you on 3 phase power?!?

If I knew I wouldn't have asked. I have no idea how 4kW is possible. Maybe its a bug in the interface?

 

[eevee-fan]

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...

https://www.amazon.com/Woodhead-28W76-Watertite-Location-Configuration/dp/B001VY1KVC/

 

[Cheburashka]

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)

My garage wall plug. Same one I've always charged the car on.

 

[MN-MS100D]

Bug. Thinks its 3-phase. Just more software issues.

 

[eevee-fan]

But is the battery really charging at 4KW rate? You can estimate by looking at how fast the pct goes up.

 

[BPeter]

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.

 

[MN-MS100D]

Its not charging at that rate; if it were, the breaker would trip, or the house would burn down.

 

[gaswalla]

Yeah - software bug. Currently at 65%, set at 70%, and needs over 2 hours to add that 5 percent of range. Not 4kw charging

 

[PhxGT]

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?