GM, Volkswagen Say Goodbye to Hybrid Vehicles

Re:GM, Volkswagen Say Goodbye to Hybrid Vehicles by xedeon on Monday August 12, 2019 @09:29PM (#20681978)

>> EVs lose out here because of battery degradation. You can quite happily buy a 10 year old ICE car and get good reliability at a good price. Trying to do the same with an EV just gets you a car with a worn out battery and low range.

Can you back this up with actual data? Because this is simply not true:

https://www.tesloop.com/blog/2018/7/16/tesloops-tesla-model-...

TESLOOP’S TESLA MODEL S SURPASSES 400,000 MILES (643,737 KM)

"Battery degradation over the course of the first 194,000 miles was ~6% with multiple supercharges a day to 95-100%, instead of the recommended 90-95%. Between 194,000 and 324,000 miles Tesloop experienced battery degradation of ~22% (see below for details)."

What's important to note is that the vehicle was mainly charged using dc fast chargers (often multiple times a day). Had this not been the case, degradation would have been even lower.

Additional data: https://www.tesloop.com/blog/2019/2/6/tesloops-high-mileage-...

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Re:GM, Volkswagen Say Goodbye to Hybrid Vehicles by clouddrover on Monday August 12, 2019 @09:46PM (#20682072)

The years aren't on it yet. Batteries degrade with use and with time. That car is only 3 years old.

Tesla warrants their batteries at 70% capacity for 8 years for the Model 3. The Model S and X have an 8 year warranty with no capacity guarantee:

https://www.tesla.com/support/vehicle-warranty

So that's about what you should expect from a Tesla battery.

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Re:GM, Volkswagen Say Goodbye to Hybrid Vehicles by xedeon on Monday August 12, 2019 @10:27PM (#20682262)

The time factor has already been solved by the battery management system (BMS) as it keeps the pack at an ideal temperature to vastly prolong the life. Battery chemistry will not change much over time as long as it does not get too hot/cold.

In addition, current data indicates that for the first 50,000 miles (100,000 km), most Tesla battery packs will lose about 5% of their capacity, but after the 50,000-mile mark, the capacity levels off and it looks like it could be difficult to make a pack degrade by another 5%.

There's a ton of data and anecdotes on this subject at the https://teslamotorsclub.com forums.

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Re:GM, Volkswagen Say Goodbye to Hybrid Vehicles by clouddrover on Tuesday August 13, 2019 @12:08AM (#20682754)

Everyone's got anecdotes. Here's one.

3% degradation after 35k KMs: https://www.youtube.com/watch?v=avGUGFrLrVc

Then 8% degradation 1 year later at 100k KMs and the car now has a reduced rate of charge: https://www.youtube.com/watch?v=loulJ3ResDg

So why would I buy a 10 year old Tesla? If it requires a new battery I'd be better off just buying a different or newer car.

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