Hi,
Some sites, and youtube videos are claiming it is possible Tesla may use Lithium Iron on the lower range Cybertruck's.
Personally I'm OK with this as I think Lithium Iron batteries charge from 100% to 0% without damage and have more lifetime cycles. Getting 100% of 300 miles vs 20% off the top and bottom (40%) of 500 miles, makes the 300 mile dual motor CT if it has Lithium Iron more of a net positive. Is there something I'm missing? 60% of 500 is 300. Keeping between 80% and 20% or going to 100% and down to near zero gives comparable daily mileage.
The 500 mile CT may be best for long range driving or hauling.
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I've also found most new battery breakthroughs to end up failing in some key metric. Maybe it charges quickly but also dies quickly. Works fine at 70F, but is destroyed in sub-freezing weather. The automotive environment has some of the harshest conditions and requires extensive validation before being successful.
What is more credible is that the CT will have the 4680 cells.