Thread: EV general discussion

Originally Posted by TonyC

Do they have a reduction gearbox?
Does it have oil that needs changing?

A Google search shows a few high mileage Tesla's
One at 1.24 million miles, miles not kilometres, it's had 4 batteries and 14 motors.
UPDATE: This 1.24 Million-Mile Tesla Model S Is On Its 14th Motor, Fourth Battery Pack

One at 430,000 miles, again miles not Km, never been serviced, mostly supercharged to 100%, which is the worst thing you can do to the battery, on top of that the bloke bought it when Tesla offered free lifetime charging, at this stage his so far ahead resale doesn't matter.
Tesla Model S Cruises Past 430,000 Miles On Original Battery | Carscoops

Tony

There is a guy in the tesla group that does rideshare. He's got a 2021 that's up to 400,000. So far just cabin filters and tyres.

Originally Posted by Captain_Rightfoot

There is a guy in the tesla group that does rideshare. He's got a 2021 that's up to 400,000. So far just cabin filters and tyres.

how many replacement motors? its only 4 years old, the problem with batteries is the chemistry dies with age. Yes, I know somoene once that did 1,000,000 kms in a falcon taxi on lpg .... Oh, hang on ... that is pretty much all the LPG falcons on lpg I must admit, they did need the gearboxes rebuilt every few hundred thousand kms. The motors? if they died, for a decade or so there, you could by a barra for less than $100 as a long motor and replace it. Gee's they were economical and reliable motoring.

there is a tesla ubur vehicle that always gets referenced. They don't mention the battery being replaced (I'm sure it has been), however it had numerous new motors (which is very weird). Why isn't the electric motor lasting indefinitely

stories like yours are always "I know someone ... somehwere that got a million miles from there ... never had a problem and its battery is still perfect". Yeah sure, whatever.



hah! that is hilarous, the article with backup as supplied by the cars themselves has been removed. what a suprise. We can't have the honest factual truth out there. the article is gone, but this was based on tesla vehicle own data downloaded over thousands of vehicles used in normal use.

Note: this is compared to the "factory claims for range". so the graph is kinda crap anyway. ie: you need to use the "real world range' as the starting point for the graph, not the manufactures range (which is ridiculous, impossible to match nonsense). the graph would look nowhere near as bad if they has used real world battery range as the starting point.

Originally Posted by DoubleChevron

how many replacement motors? its only 4 years old, the problem with batteries is the chemistry dies with age. Yes, I know somoene once that did 1,000,000 kms in a falcon taxi on lpg .... Oh, hang on ... that is pretty much all the LPG falcons on lpg I must admit, they did need the gearboxes rebuilt every few hundred thousand kms. The motors? if they died, for a decade or so there, you could by a barra for less than $100 as a long motor and replace it. Gee's they were economical and reliable motoring.

there is a tesla ubur vehicle that always gets referenced. They don't mention the battery being replaced (I'm sure it has been), however it had numerous new motors (which is very weird). Why isn't the electric motor lasting indefinitely

stories like yours are always "I know someone ... somehwere that got a million miles from there ... never had a problem and its battery is still perfect". Yeah sure, whatever.



hah! that is hilarous, the article with backup as supplied by the cars themselves has been removed. what a suprise. We can't have the honest factual truth out there. the article is gone, but this was based on tesla vehicle own data downloaded over thousands of vehicles used in normal use.

Note: this is compared to the "factory claims for range". so the graph is kinda crap anyway. ie: you need to use the "real world range' as the starting point for the graph, not the manufactures range (which is ridiculous, impossible to match nonsense). the graph would look nowhere near as bad if they has used real world battery range as the starting point.

Sorry.. WTF do you get this stuff?

According to your graph I should be down to 70% range by now? Seriously?

And the UBER.. at 400k he had a proper test done, still at 89% original capacity.

Ooops.. actually he has had a battery replacement.. the 12v battery. Cost $165 (they are only little). The newer cars have a lithium version.. more reliable.

A big problem with that graph is that the baseline isn't zero.

At first glance it appears to show that the capacity has dropped to almost nothing. Casual observers will see it as a drop of about 90%.

Only those who read the scale on the left will realise that it is less than a 10% drop.

The missing baseline is a well known tecjnique for producing a misleading graph.

So you don't think that a 36% range reduction in about 5 Years from what the salesman told the customer on buying the car is insignificant?
Regards PhilipA

Originally Posted by vnx205

A big problem with that graph is that the baseline isn't zero.

At first glance it appears to show that the capacity has dropped to almost nothing. Casual observers will see it as a drop of about 90%.

Only those who read the scale on the left will realise that it is less than a 10% drop.

The missing baseline is a well known tecjnique for producing a misleading graph.

It's really hard to say what is going on in that graph. Perhaps they have mapped it to NEDC or something like that to get the first falls. It's hard to say. "Observational" like what does that mean?

Teslas report a range. It's a factor of what the car believes is it's capacity and a estimated distance per unit of power. You can do a proper capacity test in the battery with the service mode, but you have to fully charge your car and then allow it to discharge. So it's a giant waste of power and it's just generally a waste (I mean why do it?).

Anyway when the car was new the most the car said it would do was 428k. As at yesterday, it believes it's good for 422. So 6k degradation in 850 days or so. About 1.4%. Given we know batteries degrade the quickest in the first couple of years - I think this is perfectly acceptable. And it was expected.

Tesla have been selling cars for a little while now. If battery failures were common it would have caught up to them by now. I talked to a Tech who worked for BMW before going to tesla. He said they were replacing one battery a week at BMW, but since being at Tesla they had dropped three to fix things around the battery, and then put them all back in place. That's right, no battery replacements at all at Brisbane Tesla in a year.

This is why there is limited to no batteries recyclers in Australia. At this juncture - It would be a very very poor business.

BTW I'm still waiting for the recommendation for what medium size ICE hatch back I should buy that's going to be good for 25 years.

If anyone tries a Rav4.. Toyota sold "more than 10,000" Rav4's in it's first full year of sale - 2001. There are now 5 on carsales. There are likely well less than a thousand survivors. Probably only a few hundred out of the 10,000.

Originally Posted by Captain_Rightfoot

It's really hard to say what is going on in that graph. Perhaps they have mapped it to NEDC or something like that to get the first falls. It's hard to say. "Observational" like what does that mean?

Teslas report a range. It's a factor of what the car believes is it's capacity and a estimated distance per unit of power. You can do a proper capacity test in the battery with the service mode, but you have to fully charge your car and then allow it to discharge. So it's a giant waste of power and it's just generally a waste (I mean why do it?).

Anyway when the car was new the most the car said it would do was 428k. As at yesterday, it believes it's good for 422. So 6k degradation in 850 days or so. About 1.4%. Given we know batteries degrade the quickest in the first couple of years - I think this is perfectly acceptable. And it was expected.

Tesla have been selling cars for a little while now. If battery failures were common it would have caught up to them by now. I talked to a Tech who worked for BMW before going to tesla. He said they were replacing one battery a week at BMW, but since being at Tesla they had dropped three to fix things around the battery, and then put them all back in place. That's right, no battery replacements at all at Brisbane Tesla in a year.

This is why there is limited to no batteries recyclers in Australia. At this juncture - It would be a very very poor business.

The only problem with the graph is the start point is the manufactures claimed milage. If they used a real world figure here, the drop would be considerably less. This article was based on real world car data, downloaded from teslas, so I'm quite suprised it has been removed.