No, cut out “in 4 minutes” and it makes more sense. 2.2MW shorting to ground.
Depends on what it shorts through. Highly resistant wire then not much, low resistant very thin wire then I think it would just pop like a fuse very quickly. I presume its a fairly normal voltage anyway, or at least not something that can jump a significant distance.
Now if it shorts through you and doesn’t cut out, have fun because it can deliver a massive current and keep going.
A constant 2.2 MW delivers 145 kWh in 4 minutes. Likely less because the battery needs to be charged in constant-voltage mode from some point, limiting its own current, or a temperature regulator kicks in, preventing continuous peak power flow.
A short on the charger would be 2.2MW, not the entire battery detonating at once - which is usually more of a rapid ignition than an explosion, or at the very least you don’t get the entire stored energy going off at once. Also even depleted there is a lot of energy from the materials that make up the battery.
2.2MW is a rate, not a quantity of energy. Petrol is about 34MJ/L. 2.2MW is comparable to burning 64mL/second of petrol.
We don’t actually know for sure how much energy, but it’s less than that.
We know that peak power is 2.2 MW and that the overall charging time is 4 minutes, but don’t actually know how much energy that is, because charging power slows down as the battery approaches full charge. We’ll have to wait for the announcement to tell.
JFC…2.2MW in 4 minutes is a massive amount of power to short to ground when things go wrong.
Do they mean MWh?
No, cut out “in 4 minutes” and it makes more sense. 2.2MW shorting to ground.
Depends on what it shorts through. Highly resistant wire then not much, low resistant very thin wire then I think it would just pop like a fuse very quickly. I presume its a fairly normal voltage anyway, or at least not something that can jump a significant distance.
Now if it shorts through you and doesn’t cut out, have fun because it can deliver a massive current and keep going.
A constant 2.2 MW delivers 145 kWh in 4 minutes. Likely less because the battery needs to be charged in constant-voltage mode from some point, limiting its own current, or a temperature regulator kicks in, preventing continuous peak power flow.
Ah.
No, Wh.
No
FYI, it’s the equivalent of 15L of petrol. A lot of energy, but not absurd levels.
Explosions are not slow release of energy
15L of petrol is quite the bomb, but petrol takes time to burn, while a short is nanoseconds.
A short on the charger would be 2.2MW, not the entire battery detonating at once - which is usually more of a rapid ignition than an explosion, or at the very least you don’t get the entire stored energy going off at once. Also even depleted there is a lot of energy from the materials that make up the battery.
2.2MW is a rate, not a quantity of energy. Petrol is about 34MJ/L. 2.2MW is comparable to burning 64mL/second of petrol.
We don’t actually know for sure how much energy, but it’s less than that.
We know that peak power is 2.2 MW and that the overall charging time is 4 minutes, but don’t actually know how much energy that is, because charging power slows down as the battery approaches full charge. We’ll have to wait for the announcement to tell.
Fireworks