Well also according to Gerber motor is that they can do the repair for about 5k rather than the 20-22k. So this could encourage more 3rd party shops.
I don’t know. I’m guessing it probably doesn’t help with range loss or supercharging speeds. Good question though. I sent them that question. Will update when I hear back.
The Gruber repair does not help with range loss or charging speed. Makes sense since they are only repairing the bad cells.
I guess it depends on the situation. If the charging speeds and range are still “sufficient”, at least Gruber gives an option.
For those reasons, that's why I would still see it the opposite. On the whole, the average of most of the cells should really last 20-ish years. It's these cases of a rare cell that dies that makes the car not work in the time period of a little over the warranty period, like 8-10 years old, up until about the 20+ year point, that people need to be concerned with fixing at a reasonable price. As you say, that moves the weak point, which if you can get it to 20+ years, then you really have gotten about as full a life out of it as you could reasonably expect, and it didn't need the really expensive replacement. People just don't want to get this giant gut punch of a $22,000 kind of repair bill because of one stinking, measly, cell that went bad. For what you are recommending, it's not necessarily worth spending that kind of money for a new from Tesla whole pack.
Also be aware Tesla has at this moment not fully recognized companies that do these repairs. For the old roadster Gruber has a solid business these cars are not supported anymore by Tesla and Gruber has a nice service to keep owner enjoying these cars. But if you go back to Tesla this 20k costs is including the old battery as a part they take in. What will Tesla do when a third party has been repairing a pack. Will they still take it in or will they reject it and you are presented with a higher cost or even a rejection.
Good point.
Here’s someone who did it.
Most OEMs will not accept cores that have been remanufactured by anyone except themselves so I don’t see why Tesla would.
That would be a nice solution though I doubt it is a real solution. Keep in mind how they fix it. They just open and isolate the offending cell. All the other cells have the same probability it will crap out and given they have been in service for a while, I wouldn't be surprised another module will crap out and Gerber motors will need another $5K 2 or 3 years down the road again. Or earlier. And the the cycle continues until you loses enough cells to kill the while pack.
The Gruber repair will find its niche with people who are planning to only own the car for little while longer or propping it up to sell or trade in.
This way that you are thinking and talking about is the opposite of how statistics for rare things work, though. You are talking about this as if the fact that a rare thing happened here makes it MORE likely that another one will happen in the same place. But that's not how that works. Let's say it's some half a percent: 0.005 chance. So what are the chances that there will be two of them happen TO YOU? Well, it's the half a percent and times another half a percent again. So that is 0.005 squared, or 0.000025. Now what about the chances that you have three of them all happen to you in your pack? That is now to the third power, or 0.000000125 chance.
Sure, and things may vary like that in sub-populations, where if the population as a whole has a half % failure rate, maybe some groups are more or less than that, but still, if you are computing this to the 2nd and 3rd and 4th power, it gets less and less likely. The chances do not go toward likely with 2nd and 3rd repeat events!
Irrelevant. Those were issues with degraded capacity and performance because of cell chemistry issues, not as much outright failure rates of cells going dead.
