6 ms·

I thought the idea was that you could swap batteries, not sit there charging.

daveguy 9y ago
As far as I know no one has implemented that yet. Tesla has superchargers around the country, but those are charge based not exchange based. They give +170 miles for a 30 minute charge, so not exactly a quick stop. The size and weight of the full battery pack may make it infeasible to change quickly. A half pack or 1/4 pack may be useful, but then the car has to be standardized/designed for that and you have to worry about getting worn batteries.
- wcummings 9y ago
  Agreed, I can see how that would be a hassle. That said, I cant even remember the last time i traveled more than 85mi (half the capacity, so depleting thr battery in a round trip) in a car, and I dont think im that exceptional, so theres probably still a pretty big market for these things. But personally, Ill stick to the bus. I do all my best thinking on the bus.
  - llukas 9y ago
    So you and grandparent missed somehow Tesla and other companies that demonstrated battery change?
    - daveguy 9y ago
      Oh yeah? They're offering that at charging stations? Where is that? There is an enormous difference between demonstrated and available. Showing something could work doesn't address bad batteries or standardization.
      - llukas 9y ago
        Please don't move the goalposts. Grandparent claim was: > The size and weight of the full battery pack may make it infeasible to change quickly. Tesla did it - in 90 seconds. https://www.youtube.com/watch?v=5XdiGMIUxeY https://www.youtube.com/watch?v=5XdiGMIUxeY Also WTF is that claim about bad batteries and standarization? Tesla owns entire production/support chain of Tesla cars plus they got live telemetry from each car - they set the standard and got full info about the car battery. There was another company in Israel (Better Place) that had multiple battery swap stations as well. Quick battery swap is technically feasible contrary to grandparent claim.
        daveguy 9y ago
        Did it in 90 seconds. Where are they doing it in 90 seconds? Pretty sure they scrapped it, because people didn't want the risk of getting bunk batteries. IE simply an old battery. Do you not understand that EVERY lipo battery has a limited lifespan. Do they swap your used battery for a brand new ones every time? I doubt it. If not, no thanks. Not worth the variability / risk of getting a degraded battery as all lipo batteries degrade with time and cycles. This is probably one reason they scrapped it. The next reason they scrapped it. In your video they "torqued every bolt to the factory specification". The Tesla factory specification. This is exactly what I mean by standardization. Standardization is another issue. You can't have a generic "battery swap station" until EV companies standardize on a battery system, which they won't do because battery system is going to be like a model trim. Yes, you can have a just-for-tesla swap station (but even Tesla isn't bothering with that anymore). You could have a standard charge station because charge plugs are quickly moving toward standardization. Is there anything else you are having trouble understanding? So again. Show me where this is a regular thing. It is cumbersome you can have a special garage to change out a specific battery pack. It has to be done with garage equipment, and the battery and connection system is specific to a single type of car. That will not scale. I didn't move the goalpost. I pointed out your arguments falling on their faces 50 yards away from the goalpost.
        greglindahl 9y ago
        Your guess is wrong - with the Tesla swap you got a loaner battery and later your own back.
- acover 9y ago
  Tesla has a battery swap facility in California. They decided charging was the better path.
- deleted 9y ago
  [deleted]
- hammock 9y ago
  They were testing something in Israel many years ago. Don't know what happened to that company

As far as I know no one has implemented that yet. Tesla has superchargers around the country, but those are charge based not exchange based. They give +170 miles for a 30 minute charge, so not exactly a quick stop. The size and weight of the full battery pack may make it infeasible to change quickly. A half pack or 1/4 pack may be useful, but then the car has to be standardized/designed for that and you have to worry about getting worn batteries.

wcummings 9y ago
Agreed, I can see how that would be a hassle. That said, I cant even remember the last time i traveled more than 85mi (half the capacity, so depleting thr battery in a round trip) in a car, and I dont think im that exceptional, so theres probably still a pretty big market for these things. But personally, Ill stick to the bus. I do all my best thinking on the bus.
- llukas 9y ago
  So you and grandparent missed somehow Tesla and other companies that demonstrated battery change?
  - daveguy 9y ago
    Oh yeah? They're offering that at charging stations? Where is that? There is an enormous difference between demonstrated and available. Showing something could work doesn't address bad batteries or standardization.
    - llukas 9y ago
      Please don't move the goalposts. Grandparent claim was: > The size and weight of the full battery pack may make it infeasible to change quickly. Tesla did it - in 90 seconds. https://www.youtube.com/watch?v=5XdiGMIUxeY https://www.youtube.com/watch?v=5XdiGMIUxeY Also WTF is that claim about bad batteries and standarization? Tesla owns entire production/support chain of Tesla cars plus they got live telemetry from each car - they set the standard and got full info about the car battery. There was another company in Israel (Better Place) that had multiple battery swap stations as well. Quick battery swap is technically feasible contrary to grandparent claim.
      - daveguy 9y ago
        Did it in 90 seconds. Where are they doing it in 90 seconds? Pretty sure they scrapped it, because people didn't want the risk of getting bunk batteries. IE simply an old battery. Do you not understand that EVERY lipo battery has a limited lifespan. Do they swap your used battery for a brand new ones every time? I doubt it. If not, no thanks. Not worth the variability / risk of getting a degraded battery as all lipo batteries degrade with time and cycles. This is probably one reason they scrapped it. The next reason they scrapped it. In your video they "torqued every bolt to the factory specification". The Tesla factory specification. This is exactly what I mean by standardization. Standardization is another issue. You can't have a generic "battery swap station" until EV companies standardize on a battery system, which they won't do because battery system is going to be like a model trim. Yes, you can have a just-for-tesla swap station (but even Tesla isn't bothering with that anymore). You could have a standard charge station because charge plugs are quickly moving toward standardization. Is there anything else you are having trouble understanding? So again. Show me where this is a regular thing. It is cumbersome you can have a special garage to change out a specific battery pack. It has to be done with garage equipment, and the battery and connection system is specific to a single type of car. That will not scale. I didn't move the goalpost. I pointed out your arguments falling on their faces 50 yards away from the goalpost.
        greglindahl 9y ago
        Your guess is wrong - with the Tesla swap you got a loaner battery and later your own back.
acover 9y ago
Tesla has a battery swap facility in California. They decided charging was the better path.
deleted 9y ago
[deleted]
hammock 9y ago
They were testing something in Israel many years ago. Don't know what happened to that company