CCS spec limits are actually 1000V and 500A. Electrify America uses 350A units, hence the 350 kW chargers (1000V x 350A). Lucid battery packs are 924V to maximi

CCS spec limits are actually 1000V and 500A. Electrify America uses 350A units, hence the 350 kW chargers (1000V x 350A). Lucid battery packs are 924V to maximize CCS capability. DC Fast charging has to match pack voltage, so with 400ish volt pack voltage Tesla gets big charging speed by providing extreme amperage. CCS is limited to 500A, so the best way to provide really fast charging is higher pack voltages. Higher voltage does have some benefits around heat and losses, but also has downsides like cost of electronics and installations over 600V generally require special electrical licensing. It's hard to deny the tesla connector is a lot nicer to work with (especially V3 with thin, liquid cooled cables), but I still wish my model 3 sr+ had CCS like euro cars. I'd love to be able to have more charging options.