Hacker News new | ask | show | jobs
by wilg 1097 days ago
If it's possible for NACS to support 800V charging then that is not really a very meaningful advantage of CCS, is it? I think Tesla themselves will eventually switch to 800v at some point.

V3 Superchargers have liquid cooled cables, that's why they are thinner than V2 cables. V4 has even crazier liquid cooling, where the conductors are directly immersed in the coolant.
2 comments
sangnoir 1097 days ago
Sure it can support higher voltage in a new revision, but that means currently deployed chargers have an inferior design in that aspect, doesn't it?
link
JumpCrisscross 1097 days ago
> it can support higher voltage in a new revision, but that means currently deployed chargers have an inferior design in that aspect

It's tough to bring currently deployed chargers to CCS's defence, given most deployed chargers are Tesla's.

link
sangnoir 1097 days ago
That sounds like goal-shifting, considering I was arguing against gp's rather absolute claim on NACS having superior design and engineering:

>> It's better engineered and designed. It's that simple

link
JumpCrisscross 1097 days ago
> sounds like goal-shifting, considering gp's rather absolute claim on NACS having superior design and engineering

CCS currently supports 800V. NACS is going to support 800V. The number of extant chargers with 800V capability is, to a reasonable approximation, the same for CCS and NACS. So NACS being able to support 800V rhetorically balances CCS being able to roll out 800V chargers (or any, period), at least in my mind.

Put another way, one solution is deployed and capable of upgrading. The other is also capable of upgrading, maybe comes upgraded already, but hasn't been deployed. The first strikes me as better engineered. (The latter may have superior design, but I have trouble buying that argument given NACS can be upgraded.)

link
wilg 1097 days ago
Sure, but I don't know whether that would be a hardware revision or just a protocol thing how complicated it would be. Could be a software update for all I know. Is it the case that all currently deployed CCS chargers support 800v charging? If not, is it possible for an 800v architecture vehicle to charge at a 400v CCS charger?

Plus, if the concern is the port then I don't necessarily mind that fast charging companies will have to deploy new hardware, as long as the cars don't need to get retrofitted all the time or use adapters.

link
KaiserPro 1097 days ago
From what I can see, telsa use CCS2 but with a different plug.

In the EU/UK they have the CCS2 plugs on them, and are compatible with any CCS2 capable car.

(source: me, I used one last week for a non tesla car)

link