HofmaimaierUnited by plug
kalapalaElectric bikes and electric scooters should also have this same standard but no every bullshit company still has their own proprietary DRM charger.
Wouldn’t that charge very slowly then though? A usb-c charging port seems a bit underpowered as soons as you need to charge something larger than a notebook.
Don’t really have a clue about e-bikes. But looking through some e-bike chargers on Amazon, they have maybe 100 W to 200 W.
USB-PD (EPR) apparently supports up to 240 W. Do note that the e-bike chargers are rated at 54.6 V, though, while PD only supports up to 48 V, and I guess the higher voltage might be required for the cell chemistry. So idk if it would be possible to design your batteries around the USB spec. In any case, you would need a separate charger and special cable to support 5 A over USB anyways.
I’m not aware of any cell type with more than a few volts of potential. If we’re designing from scratch you just put fewer of them in series in each pack. There might be problems getting other components conductive enough to facilitate the needed power transfer at a much lower voltage, although now we’re outside of what I really know. If it’s 40V it shouldn’t be a problem.
While you’re at it standards for higher power DC would also be good. IIRC there’s a few in competition for EVs right now.
That’s what I thought too, initially. But then I thought that maybe there is a good reason for the specific 54.6V figure. But I didn’t dig deeper
Good point. It’s probably an integer multiple of the (nominal? State of charge comes into it too) cell potential. Which is fine, as long as there’s another one that’s reasonably high but below the USB-PD maximum.