With the 2022.11.02 software update, Rivian has given the R1T the ability to charge up to 500 Amps. In their latest video Kyle Conner from Out of Spec Reviews talks about this upgrade.
where are you getting only 125kW from? 500A is 200+ kW on a 400V architecture.That's 125 KW and that's at the low end of fast charging today. New Teslas will charge to 350 KW for a limited time before they taper.
As far as I can tell newer Teslas max at 250 kW, do you have a link to a faster charging curve. Here is a link to Model S Plaid, holds 250 kW from 10-30%, pretty awesome - Tesla Model S Plaid Fast Charging Results Amaze: Analysis. Here's a link to M3 charge curve, also excellent - How Fast Does A 2021 Tesla Model 3 Charge? We Find Out.That's 125 KW and that's at the low end of fast charging today. New Teslas will charge to 350 KW for a limited time before they taper.