Two Tesla destination chargers capped me at 10 kilowatts/he. Do i have a wrong setting?

[EVchiq]

I went to Tesla.com and looked up destination chargers. I found two that were listed to be 16kw/hr.

However when i charged at these two locations, both charged me at 10kw/hr.

I was curious if I have some wrong setting?

Both times i had the "amps" slider in the app set to max.

 

[jjrandorin]

Destination chargers in the US are all single phase Level 2 (L2) chargers, so do not charge at that speed. They max out at 48amps if you have a Long range tesla Model Y (assuming model Y since this is the subforum you posted at).

You likely got 10w because it was 48amp at commercial voltage (208v).

 

[EVchiq]

Destination chargers in the US are all single phase Level 2 (L2) chargers, so do not charge at that speed. They max out at 48amps if you have a Long range tesla Model Y (assuming model Y since this is the subforum you posted at).

You likely got 10w because it was 48amp at commercial voltage (208v).

Got it. I am a model y LR in the USA so that must have been what happened.

If this is the case, why does Tesla.com list them at 16kw/hr?

 

[jjrandorin]

Got it. I am a model y LR in the USA so that must have been what happened.

If this is the case, why does Tesla.com list them at 16kw/hr?

I dont know, but older model S and X have onboard chargers that can support those speeds, so perhaps the station can charge at that speed for those cars. No model 3 or Y has ever supported that speed from the onboard charger (the charger is actually in the car, not at the connector).

 

[jcanoe]

The charging screen within the Tesla Model Y vehicle will display the charging amperage and charging voltage. Example: 48A / 48A at 208V. The first amperage value is the charging amperage, the second number is the amperage limit for the charging session. I routinely charge using a public Level 2 charging station, voltage is always right around but never above 200V. Even when charging late in the evening or during early hours the voltage is never close to 208V.

 

[ucmndd]

If this is the case, why does Tesla.com list them at 16kw/hr?

Various older model S/X can charge at 72 or 80 amps, and the stations you reference would seemingly support that. Your car is capped at 48 amps regardless of what the L2 charger can provide.

 

[jjrandorin]

I should have amended my first post to say that "model Ys in the US" not "L2 chargers in the US" because gen 2 destination chargers can charge up to 80Amp speed, but no model Y or 3 can charge at that speed.

 

[Rocky_H]

why does Tesla.com list them at 16kw/hr?

The units are bugging me a bit. That should just be kW. Kilowatts is already an energy per hour rate. The amount of energy would be in kilowatts times hours, and then when you put that over hours again, hours cancels out.

 

[OxBrew]

The charging screen within the Tesla Model Y vehicle will display the charging amperage and charging voltage. Example: 48A / 48A at 208V. The first amperage value is the charging amperage, the second number is the amperage limit for the charging session. I routinely charge using a public Level 2 charging station, voltage is always right around but never above 200V. Even when charging late in the evening or during early hours the voltage is never close to 208V.

I just got 208V at a hotel in Seattle last week. It happens.

 

[Skiwaterdog]

I just got 208V at a hotel in Seattle last week. It happens.

Under 200V is low. My car is charging at home currently at 238V.

 

[jcanoe]

Under 200V is low. My car is charging at home currently at 238V.

That is for commercial power, i.e. 3-phase power. 200 to 208V is normal for 3-phase power. 240V is only for residential power, sometimes called split phase or single phase power.

 

[augkuo]

Back in the old days, people had 70 or 80A chargers onboard their cars (Roadster/Model S/X) when superchargers weren't very prevalent. 80A*208 = 16kW max. Now that lots of superchargers are around, it didn't make sense for people to spend extra money for fast AC charging.