Here’s how a Tesla Model S holds up after 400,000 miles in 3 years
Here’s how a Tesla Model S holds up after 400,000 miles in 3 years
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Tesloop has incurred a combined maintenance cost of roughly $19,000 or about $0.05/mile. This cost breaks down to $6,700 for general vehicle repairs and $12,200 for regularly scheduled maintenance. [...] Tesloop estimates that a Lincoln Town Car or Mercedes GLS class combined maintenance cost to be around $88,500 ($0.22/mile) and $98,900 ($0.25/mile) respectively over 400,000 miles.

The first battery pack replacement happened after 194,000 miles. At that time, the battery pack energy capacity degradation was at ~6%, which is reasonable, but Tesla found a problem due to Tesloop’s frequent Supercharging.

Here’s the reason Tesla gave for the battery replacement:

Found internal imbalance in HV battery due to consistent supercharging to 100% from a low state of charge (SOC) without any rest periods in between. HV battery has been approved to be replaced. Also recommend that customer does not Supercharge on a regular basis and does not charge to 100% on a regular basis. We also recommend that the customer use scheduled charging to start charge 3 hours after end of drive at low SOC.

Tesloop says that it was supercharging the car multiple times a day and at 95 to 100% state-of-charge – two things that Tesla doesn’t recommend for the health of the battery pack.

The second battery pack replacement happened at 324,000 miles and Tesloop says it experienced a much more aggressive battery degradation of ~22%.

Tesla said that there was an issue with the pack:

Diagnostics show the high voltage battery assembly is not functioning appropriately. Removed and replaced the high voltage battery assembly. Replaced with a 90kw permanent battery replacement. Pushed updated firmware to ensure proper communications. Upon completion, function test was performed to confirm concern has been rectified.

Tesla repairs and reused parts of its old battery packs, which in this case were replaced under warranty.

Those actually weren’t Tesloop battery packs with the most cycles since it also has a Model X with its original battery pack after 300,000 miles. The company reports about ~10% of battery degradation.
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https://electrek.co/2018/07/17/tesla-model-s-holds-up-400000-miles-3-years/
https://electrek.co/2018/07/17/tesla-model-s-holds-up-400000-miles-3-years/

Labels: Oleg Zabluda

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