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Migrating to higher voltage doesn't do anything to charge batteries faster. The only advantage is that you can decrease the size of the cabling since current go
by Kirby64 3y ago
Migrating to higher voltage doesn't do anything to charge batteries faster. The only advantage is that you can decrease the size of the cabling since current goes down. On the other side though, you need to move all drive circuitry, motors, etc, to handle higher voltage architecture, which may end of costing more overall.
- cyberax 3y agoNot necessarily. Ford uses a 400V-based architecture, but it can charge at 800V by connected two sections of the battery in series.
- Kirby64 3y agoSo, you add the complexity of having to have a way to switch between 400V and 800V safely, which costs some amount of money, and the only advantage then is the cabling from the battery to the charging port can be thinner? That really doesn't seem like much savings, and if anything might cost more. The run from the charging port to the battery should already be really short.
- cyberax 3y ago800V for charging allows faster charging on CCS, because the existing stations are mainly current-limited. It won't be necessary on NACS. I think that Ford just wants to switch to 800V anyway, and 400V is just a stopgap.