The brake capacitor is a backup power supply for the hydraulic braking system so that in the event of total power failure or system shutdown you would still have enough power to stop the car safely. The hydraulic braking system uses a pump to generate boost pressure so you can have reasonable pedal force with disc brakes.Herm wrote:A couple of questions...
1. what is a brake capacitor?
2. How do they handle L3 charging, any details?
If you order the L3 port then perhaps you can also use it for charging at 6.6kw, with an external charger that sits on the wall of your garage.
The DC fast charge (technically there is not yet a L3 "standard") is essentially off-board. The car sends a serial message to the off-board charger letting it know how much power to send and when to stop. Yes, if you buy a DC fast charger then you could charge at up to 30kW depending on the limitations of the charger (and the power fed into your house).