Out of Spec Podcast on Gravity Charging Performance

[msaunders9430]

 

[PetevB]

I skipped around, but my main conclusion was to expect ~200 miles of range in 15 minutes starting from 10% charge on a Tesla V3 supercharger. V4 or higher voltage/ higher power chargers will be faster, 12 minutes for 200 miles.

 

[Adnillien]

Nice numbers:
Over 400kW plus peak charging power at low SOC
926V maximum voltage
Over 200kW charging power at 50% SOC
200 miles in 12 minutes based on EPA range
20% to 30% more cooling capacity than Air
Boost for low voltage 500V chargers comes from rear motor inverter allowing 225kW charging power
16 battery modules for Touring version versus 22 for GT, this is why split pack is not a good choice because charging would become current limited.
Adapters included with Gravity 1000V and 500A

 

[msaunders9430]

I love Emad's comments around the 31 minute mark when he talks about the possibility of accessing the Tesla supercharger network. They never thought Tesla would open their network. Talked about it, but ruled it out. There have been comments on the forum about Lucid being reliant on the Tesla network. Lucid will be fine.

Around the 40 minute mark is where Air owners may be interested to hear about what's coming. Not alot of details, but some.

On a side note, Kyle mentions the Gravity software very briefly. Says he played around with a Gravity more recently (since his earlier review). He didn't sound concerned about the software. Says his remaining question about the charging capability has now been answered.

 

[Sid432]

Nice numbers:
Over 400kW plus peak charging power at low SOC
926V maximum voltage
Over 200kW charging power at 50% SOC
200 miles in 12 minutes based on EPA range
20% to 30% more cooling capacity than Air
Boost for low voltage 500V chargers comes from rear motor inverter allowing 225kW charging power
16 battery modules for Touring version versus 22 for GT, this is why split pack is not a good choice because charging would become current limited.
Adapters included with Gravity 1000V and 500A

Nice numbers:
Over 400kW plus peak charging power at low SOC
926V maximum voltage
Over 200kW charging power at 50% SOC
200 miles in 12 minutes based on EPA range
20% to 30% more cooling capacity than Air
Boost for low voltage 500V chargers comes from rear motor inverter allowing 225kW charging power
16 battery modules for Touring version versus 22 for GT, this is why split pack is not a good choice because charging would become current limited.
Adapters included with Gravity 1000V and 500A

Given the known now with respect to voltage and peak charging. Can we derive some numbers for touring trim with 16 mods ?

 

[momo3605]

Given the known now with respect to voltage and peak charging. Can we derive some numbers for touring trim with 16 mods ?

Also...does 16 modules out of 22 mean the Touring will have an EPA rating of 320 miles? 16/22 * 440?

 

[Adnillien]

Given the known now with respect to voltage and peak charging. Can we derive some numbers for touring trim with 16 mods ?

The peak charging power on 1000V chargers will scale with voltage making it 290kW. The charging on low voltage Tesla chargers will depend on the number of SiC mosfets in the rear motor/inverter, it may be reduced by one-third

 

[WeighingGravity]

^ I have no idea what this means or how it might (or might not) relate to my question, but is there any word on how Gravity might charge at V2 superchargers? Or are those not even open at all to other brands? I've kind of lost the plot here with my meager understanding and caveman brain.

 

[Sid432]

Also...does 16 modules out of 22 mean the Touring will have an EPA rating of 320 miles? 16/22 * 440?

Yikes. That’s very low, 192 EPA miles from 20-80%

 

[momo3605]

^ I have no idea what this means or how it might (or might not) relate to my question, but is there any word on how Gravity might charge at V2 superchargers? Or are those not even open at all to other brands? I've kind of lost the plot here with my meager understanding and caveman brain.

V2's are not open to non-Teslas

 

[Rogue]

Yikes. That’s very low, 192 EPA miles from 20-80%

320 miles is almost the same as the Model X Long Range. I am not sure about others. Remember a reduction in weight will improve the range via efficiency gains, so the EPA range should actually be more.

 

[hydbob]

^ I have no idea what this means or how it might (or might not) relate to my question, but is there any word on how Gravity might charge at V2 superchargers? Or are those not even open at all to other brands? I've kind of lost the plot here with my meager understanding and caveman brain.

I THINK V1/V2 Superchargers use CHaDemo as a protocol. All new cars, yes even Teslas, use the CCS protocol for communication which is why all the non-Tesla cars who can use the SC network can only use V3 and above. Someone will correct me I'm sure

 

[Elfin]

I THINK V1/V2 Superchargers use CHaDemo as a protocol. All new cars, yes even Teslas, use the CCS protocol for communication which is why all the non-Tesla cars who can use the SC network can only use V3 and above. Someone will correct me I'm sure

V1/V2 are definitely a different protocol and NACS uses the CCS protocol. Not all V3 Superchargers support non-Tesla EVs but I'm not sure if it's because they don't support CCS protocol. The Tesla Supercharger map show which chargers are available to other brands.

https://www.tesla.com/findus?bounds=35.19122788913003%2C-117.13139965527343%2C33.10479441219416%2C-120.15950634472655&location=CalabasasCAsupercharger&functionType=supercharger

 

[illopp00]

Also...does 16 modules out of 22 mean the Touring will have an EPA rating of 320 miles? 16/22 * 440?

Close, but it will also be 6 modules lighter. I am thinking like 340, maybe higher in 5 seat trim.

 

[xponents]

320 miles is almost the same as the Model X Long Range. I am not sure about others. Remember a reduction in weight will improve the range via efficiency gains, so the EPA range should actually be more.

Yes, I would estimate around 350.

 

[Elfin]

320 miles is almost the same as the Model X Long Range. I am not sure about others. Remember a reduction in weight will improve the range via efficiency gains, so the EPA range should actually be more.

Probably smaller rear motor with slimmer drive shafts too. Rawlinson mentioned at Technology Day that the "Atlas" drive unit might be used in the cost down Gravity.