> The 48V architecture is the optimal long-term choice, requiring ¼ of the current to deliver the same amount of power.
Is there a reason why 48V is better long term than going higher like 96V?
Is there a reason why 48V is better long term than going higher like 96V?
One another advantage of the new 48V architecture is that it doesn't depend on the car body for the current return path. This opens up possibilities of adding sensors that detect current leakage, to pinpoint areas with defective wiring and/or components.
A short/failure at 100V is much more dangerous than at 50V. Both from a fire-safety perspective as well as an electrocution risk perspective.
Too big/bulky?
The connector is bulky and of metal, and designed to be used inside. It's also expensive compared to other connectors. There are a lot of cheaper, more suitable connectors, designed to carry power.
IMO solar pioneered (in recent history) 48V DC systems, which is an easy multiple of 12V to stay below the 50V “high voltage” safety threshold.
It allowed people to use smaller gauge wire and chain together multiple 12V batteries that are readily available.
Signaling on POTS easily hit over 100V, btw.