- Joined
- Aug 23, 2020
- Messages
- 3,596
- Reaction score
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- Location
- Paradise Valley, AZ
- Cars
- Lucid GT
- Referral Code
- K9WIJHB0
It is quiet here while we either anxiously wait for deliveries to begin next or have given up hope for October deliveries. I am in the deliveries start next week camp.
I am really hoping to start hearing more about the Touring specifications. As a shareholder, the Touring and Pure are what will make Lucid successful. As a reservation holder, I want to make sure the GT is the best choice for me and not the Touring.
I have been contemplating the battery size for the Air Touring a bit. It is not possible to simply remove 4 battery modules and keep the same 924 V architecture in the Air Touring as in GT and Dream. Based on information from Lucid and in the press, we know quite a bit about the Dream and Air GT but not so much about the Touring. Below is the information that I base my speculation on:
What about other differences between the Touring and GT? Has anyone heard anything other than what’s on the configurator? What about leather, is it the same? What about seat ventilation and massage?
I am really hoping to start hearing more about the Touring specifications. As a shareholder, the Touring and Pure are what will make Lucid successful. As a reservation holder, I want to make sure the GT is the best choice for me and not the Touring.
I have been contemplating the battery size for the Air Touring a bit. It is not possible to simply remove 4 battery modules and keep the same 924 V architecture in the Air Touring as in GT and Dream. Based on information from Lucid and in the press, we know quite a bit about the Dream and Air GT but not so much about the Touring. Below is the information that I base my speculation on:
- Air GT
- EPA range of 516 miles
- 112 kWh battery
- 924 V architecture
- 22 battery modules, each with 300 cells, or 6600 total cells
- 800 HP
- Air Touring
- Expected EPA range of 406 miles
- 18 battery modules
- During the Production Preview keynote, Peter alluded to getting more than 406 mile range with an 88 kWhr battery without saying the Air Touring would be 88 kWhr. He also said that the Touring should be more efficient than the GT due to lower weight of the smaller battery.
- Similar charging speed as GT
- The previous two lines are consistent with a 924V architecture.
- 620 HP
- Batteries
- Lucid is working with Samsung on a proprietary chemistry with Samsung. I am not sure where this may be used or any details about the chemistry.
- Lucid is using a standard Li-ion NMC chemistry from LG Chem
- Standard Li-ion NMC batteries have a nominal voltage of 3.6 to 3.7 V (average over state of charge) and charge at 4.2 V.
- 220 battery cells in series at 4.2 Volts conveniently adds to 924 V.
- If only 4 modules are removed, the range should be 18/22 multiplied by 516 miles = 422 miles. Maybe slightly higher due to the reduced weight and reduced current draw from the 620 HP motors versus the 800 HP GT.
- The battery size should be 18/22 multiplied by 112 kWhr = 91.6 kWhr. Assuming that it is not lowered by software.
- A series string of battery cells must add to 924 V. I believe the 924 V refers to the charging voltage of 4.2 V/cell. Hence, 220 cells are needed to reach 924 Volts.
- The GT’s 6600 cells is evenly divisible by 220 giving 30 parallel battery strings.
- For the Touring - 18 modules at 300 cells per module would make 5400 cells. 5400 is not evenly divisible by 220 so another 120 cells have to be removed. Resulting in 5280 cells instead of 5400 cells. This makes 24 parallel strings.
- The math works a little better now.
- 24/30 * 516 miles = 413 miles
- 24/30 * 112 kWhr = 89.6 kWhr
What about other differences between the Touring and GT? Has anyone heard anything other than what’s on the configurator? What about leather, is it the same? What about seat ventilation and massage?