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This is a bad chart that really tells you nothing. Could you imagine, for example, measuring how fast you can fill up a car in miles/hour? It's a nonsense mea

This is a bad chart that really tells you nothing. Could you imagine, for example, measuring how fast you can fill up a car in miles/hour? It's a nonsense measure. A better measure is the 0 to 80% time with a 350kW charger. That'll actually tell you how long you can expect to wait at a charger. But that's also not as flashy a number as "1000 miles per hour charging!"

fuzzy2 3y ago
> measuring how fast you can fill up a car in miles/hour But that’s exactly what my EV’s app shows. (-:
robertlagrant 3y ago
> A better measure is the 0 to 80% time with a 350kW charger. That'll actually tell you how long you can expect to wait at a charger. But that's also not as flashy a number as "1000 miles per hour charging!" No it's not, because different cars have different capacities. This measure standardises that.
Ographer 3y ago
Yeah, these are theoretical lab tests. Good luck actually finding a series of working, available fast chargers on a real road trip anywhere. I really want an Ioniq5 but I'll wait until they switch to the Tesla style plugs because the support is currently not there.
bluGill 3y ago
It also isn't a number I can use to compare cars. Each car will have a different battery. A car with a large battery may fill much faster if you give it a 800kw charger, but since the charger is the limit it takes a while - but in the amount of time it takes to charge a car with a small battery the large battery car would take more charge and get farther. Or something else. Once I've selected a car I'm interested in the 20-80% charge time (that seems to be the recommended fill levels), but until then I'm comparing cars with different batteries and I need something use to compare and 0-80% at 350kW time is not that.
tetromino_ 3y ago
> Could you imagine, for example, measuring how fast you can fill up a car in miles/hour? No. First, an ICE car's fuel tank is filled up in a small fraction of an hour; "miles/minute" would be a more relevant unit. But more importantly, because the speed of fuel fill up depends only on the fuel station's pump, not on any engineering feature of the car itself.
pornel 3y ago
This is a fantastic unit, because it normalizes charging speed and vehicle efficiency. It’s directly proportional to time you’ll have to wait to drive X distance. If they reported time to fill up the battery, it would vary between battery sizes, and overall time spent charging would be different due to different number of charging stops. If they reported charging power (kW), it would mean different range depending on vehicle efficiency. This is the best unit. You know how far you travel, you can easily calculate how long you will charge.
kalleboo 3y ago
Then the Prius would win hands-down since it can fill up it's tiny hybrid battery in like 30 seconds on a downhill.

fuzzy2 3y ago

> measuring how fast you can fill up a car in miles/hour But that’s exactly what my EV’s app shows. (-:

robertlagrant 3y ago

> A better measure is the 0 to 80% time with a 350kW charger. That'll actually tell you how long you can expect to wait at a charger. But that's also not as flashy a number as "1000 miles per hour charging!" No it's not, because different cars have different capacities. This measure standardises that.

Ographer 3y ago

Yeah, these are theoretical lab tests. Good luck actually finding a series of working, available fast chargers on a real road trip anywhere. I really want an Ioniq5 but I'll wait until they switch to the Tesla style plugs because the support is currently not there.

bluGill 3y ago

It also isn't a number I can use to compare cars. Each car will have a different battery. A car with a large battery may fill much faster if you give it a 800kw charger, but since the charger is the limit it takes a while - but in the amount of time it takes to charge a car with a small battery the large battery car would take more charge and get farther. Or something else. Once I've selected a car I'm interested in the 20-80% charge time (that seems to be the recommended fill levels), but until then I'm comparing cars with different batteries and I need something use to compare and 0-80% at 350kW time is not that.

tetromino_ 3y ago

> Could you imagine, for example, measuring how fast you can fill up a car in miles/hour? No. First, an ICE car's fuel tank is filled up in a small fraction of an hour; "miles/minute" would be a more relevant unit. But more importantly, because the speed of fuel fill up depends only on the fuel station's pump, not on any engineering feature of the car itself.

pornel 3y ago

This is a fantastic unit, because it normalizes charging speed and vehicle efficiency. It’s directly proportional to time you’ll have to wait to drive X distance. If they reported time to fill up the battery, it would vary between battery sizes, and overall time spent charging would be different due to different number of charging stops. If they reported charging power (kW), it would mean different range depending on vehicle efficiency. This is the best unit. You know how far you travel, you can easily calculate how long you will charge.

kalleboo 3y ago

Then the Prius would win hands-down since it can fill up it's tiny hybrid battery in like 30 seconds on a downhill.