Gravity and Tesla Wall Connector (Gen2 not supported, Gen3 works)

[RajD]

I have a 2025 Air Pure and a 2026 GGT that I just took delivery on. Can someone explain why my Air charges significantly FASTER than my GGT on my Tesla Universal Wall Charger? BOth are set to pull 40amps, but maybe the GGT isn't doing it? My Air is charging at 42mi/hr and the GGT is only at 32mi/hr. I'm not sure if it has to do with the discussion above, but any insights would be appreciated!

 

[Smorgasbord]

Are both vehicles at the same battery SOC? If the Gravity is close to full it won’t pull as many amps.

 

[Pragmatic]

They are likely both pulling the same kw, just 40amps (9.6kw) is 42 miles on an Air (4.3 miles/kw-hr) and 32 miles on the Gravity (3.2 miles/kw-hr).

 

[RajD]

Are both vehicles at the same battery SOC? If the Gravity is close to full it won’t pull as many amps.

Same state of charge yes.

 

[RajD]

They are likely both pulling the same kw, just 40amps (9.6kw) is 42 miles on an Air (4.3 miles/kw-hr) and 32 miles on the Gravity (3.2 miles/kw-hr).

I see. I thought (I guess incorrectly) that the Gravity might have the capacity to charge more quickly than the Air due to its architecture but maybe it’s just that it can accept much higher voltage at superchargers.

 

[RandomDesign]

I see. I thought (I guess incorrectly) that the Gravity might have the capacity to charge more quickly than the Air due to its architecture but maybe it’s just that it can accept much higher voltage at superchargers.

Not on a L2 charger, you're going to be limited by the charger and not the vehicle.

 

[RajD]

Not on a L2 charger, you're going to be limited by the charger and not the vehicle.

I get that the L2 won’t hit faster speeds, but surprised that gravity is that much slower than an Air on the same L2 charger.

 

[RandomDesign]

I get that the L2 won’t hit faster speeds, but surprised that gravity is that much slower than an Air on the same L2 charger.

You're comparing a car with an 84 kWh battery pack to one with a 123 kWh battery pack using a charger who's output is being maxed out well before the car's input capacity. Of course the larger pack will take longer to fully charge at L2.