Testing procedure:

• Tire pressure set to manufacturer recommendation

• Car starts at 10% SoC with battery fully preconditioned

• Plug in to DCFC, record handshake time between car and charger communication

• Charge for precisely 15 minutes starting when the contactors click

• Use climate control while charging to maintain cabin temperature

• Enter highway, gentle acceleration to 80 mph GPS-verified

• Climate set to 68-72 (eco mode if possible)

• Avoid drafting trucks/other vehicles

• Use ~1/2 of replenished range then turn around

• Set fast charger as destination to precondition battery

• Maintain 80 mph until battery SoC moves from 11% to 10%