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"Miles per battery" is possibly the stupidest metric to use to describe a battery capacity. Any battery can last one million miles if it's just sitting on a se

"Miles per battery" is possibly the stupidest metric to use to describe a battery capacity. Any battery can last one million miles if it's just sitting on a seat in a vehicle.

19ylram49 7y ago
Come on, I’m sure that the tests are more extensive than that!
throwaway9281 7y ago
Okay there you're becoming too Aspergers and literal about language.
- yazr 7y ago
  The GP is correct and not just being pedantic. This is just click bait. A battery (life)range is degraded (mostly) by (dis)charging speed, average discharge level and ambient heat. The bigger the battery, the less strain on each cell, and hence longer life time. I hope tesla is improving its battery, but this title is really bad.
  - spockz 7y ago
    A more positive read would be that this new battery lasts as many charges are necessary for a model 3 equipped with a battery pack of this type to drive 1 million miles. (Which is how I interpreted it.)
  - epistasis 7y ago
    This just needs some context to make sense, and when you add in the "in robot taxis" that is on the original article, that makes a very sensical context: a vehicle that can carry people. All language requires these sorts of assumptions; its implicit in pretty much every sentence. For most people, they will understand what is meant very quickly. Could it be better? Sure. But the question is better for whom, and with what implicit assumptions about the world?
    - yazr 7y ago
      The robo-taxi connotation is even worse. Any robo-taxi can be programmed to drive like a grand-ma to improve battery life. The cost of a x2 battery size is easier to amortize. Its life time can be managed and optimized with ML. And yes - it can get the greatest and latest battery chemistry. At this stage - we just dont need a "battery miracle" or a Musk-moonshot (trade-mark?) for passenger EVs.
      - zaroth 7y ago
        The point of the Robotaxi use case is it presents a very high duty cycle (multiple full charges per day) but with lower maximum range constraints. So it’s particularly well suited for a chemistry which provides slightly lower density trade-off for double the total lifetime cycles. Similarly for EV buses and trucks. Better chemistry at lower cost benefits passenger cars but also public transit and grid storage. It’s a multi-hundred-billion if not trillion dollar market overall. It has nothing particularly to do with “Musk-moonshot” other than Tesla hyping and accelerating the pace of EV mass adoption, which drives a virtuous cycle for battery chemistry investment.
    - woodandsteel 7y ago
      >All language requires these sorts of assumptions; its implicit in pretty much every sentence. For most people, they will understand what is meant very quickly. I have a snarky saying that no matter how clear you make yourself, someone can always misunderstand you if they really want to.
  - klyrs 7y ago
    > The GP is correct and not just being pedantic. >> Any battery can last one million miles if it's just sitting on a seat in a vehicle. Snark or pedantry? I say both.
- _nhynes 7y ago
  > becoming too Aspergers Why did you think it necessary to gauge GP's comment on a scale measuring how likely it could have come from someone with what is considered a mental disorder? You could have easily omitted that phrase and the post would have conveyed the same meaning. Here, you’ve either a) derided the non-malicious, involuntary behavior of a group of people, or b) tactlessly called out GP for being a member of this group. There’s nothing good that could have come from that. Please try to have more empathy in the future.
  - dang 7y ago
    "Don't feed egregious comments by replying; flag them instead." https://news.ycombinator.com/newsguidelines.html https://news.ycombinator.com/newsguidelines.html
bryanlarsen 7y ago
I think it's the best metrics I've seen in a while. "For usage where our previous battery gets 300,000 - 500,000 miles, this gets a million miles". It's a real world number.

"Miles per battery" is possibly the stupidest metric to use to describe a battery capacity. Any battery can last one million miles if it's just sitting on a seat in a vehicle.

19ylram49 7y ago

Come on, I’m sure that the tests are more extensive than that!

throwaway9281 7y ago

Okay there you're becoming too Aspergers and literal about language.

yazr 7y ago
The GP is correct and not just being pedantic. This is just click bait. A battery (life)range is degraded (mostly) by (dis)charging speed, average discharge level and ambient heat. The bigger the battery, the less strain on each cell, and hence longer life time. I hope tesla is improving its battery, but this title is really bad.
- spockz 7y ago
  A more positive read would be that this new battery lasts as many charges are necessary for a model 3 equipped with a battery pack of this type to drive 1 million miles. (Which is how I interpreted it.)
- epistasis 7y ago
  This just needs some context to make sense, and when you add in the "in robot taxis" that is on the original article, that makes a very sensical context: a vehicle that can carry people. All language requires these sorts of assumptions; its implicit in pretty much every sentence. For most people, they will understand what is meant very quickly. Could it be better? Sure. But the question is better for whom, and with what implicit assumptions about the world?
  - yazr 7y ago
    The robo-taxi connotation is even worse. Any robo-taxi can be programmed to drive like a grand-ma to improve battery life. The cost of a x2 battery size is easier to amortize. Its life time can be managed and optimized with ML. And yes - it can get the greatest and latest battery chemistry. At this stage - we just dont need a "battery miracle" or a Musk-moonshot (trade-mark?) for passenger EVs.
    - zaroth 7y ago
      The point of the Robotaxi use case is it presents a very high duty cycle (multiple full charges per day) but with lower maximum range constraints. So it’s particularly well suited for a chemistry which provides slightly lower density trade-off for double the total lifetime cycles. Similarly for EV buses and trucks. Better chemistry at lower cost benefits passenger cars but also public transit and grid storage. It’s a multi-hundred-billion if not trillion dollar market overall. It has nothing particularly to do with “Musk-moonshot” other than Tesla hyping and accelerating the pace of EV mass adoption, which drives a virtuous cycle for battery chemistry investment.
  - woodandsteel 7y ago
    >All language requires these sorts of assumptions; its implicit in pretty much every sentence. For most people, they will understand what is meant very quickly. I have a snarky saying that no matter how clear you make yourself, someone can always misunderstand you if they really want to.
- klyrs 7y ago
  > The GP is correct and not just being pedantic. >> Any battery can last one million miles if it's just sitting on a seat in a vehicle. Snark or pedantry? I say both.
_nhynes 7y ago
> becoming too Aspergers Why did you think it necessary to gauge GP's comment on a scale measuring how likely it could have come from someone with what is considered a mental disorder? You could have easily omitted that phrase and the post would have conveyed the same meaning. Here, you’ve either a) derided the non-malicious, involuntary behavior of a group of people, or b) tactlessly called out GP for being a member of this group. There’s nothing good that could have come from that. Please try to have more empathy in the future.
- dang 7y ago
  "Don't feed egregious comments by replying; flag them instead." https://news.ycombinator.com/newsguidelines.html https://news.ycombinator.com/newsguidelines.html

bryanlarsen 7y ago

I think it's the best metrics I've seen in a while. "For usage where our previous battery gets 300,000 - 500,000 miles, this gets a million miles". It's a real world number.