Tesla battery is really powerful: the capacity of driving 260,000 kilometers is still more than 90%

According to technology media electrorek, battery aging is one of the biggest concerns for electric car owners and potential buyers, but the data of Tesla batteries has so far been reassuring.

The latest data shows that Tesla's battery capacity has fallen by less than 10% after driving more than 160,000 miles (about 260,000 kilometers).

A group of Tesla owners are collecting data on more than 350 Tesla cars worldwide at the Dutch-Belgium Tesla Forum and are frequently updated in a public Google file.

These data have been reported before, but since then more vehicles have been added, and these vehicles have added more mileage and completed more battery cycles.

The data clearly shows that in the initial 50,000 miles (100,000 km) mileage, most Tesla batteries will lose 5% of capacity, but after 50,000 miles (100,000 km) mark, battery capacity it is difficult to drop another 5%.

Current trends indicate that Tesla batteries can be recycled over 300,000 kilometers on average before the battery capacity drops to nearly 90% of the initial capacity.

The following is a related chart obtained after collecting data:

There are some special data points on the chart. They try to find out the reasons by collecting other data, such as the frequency of DC fast charging and daily charging, but there is no clear indication that these factors have any significant impact on their data.

Based on the above statistical chart, Jeff Dahn, a well-known battery research expert and head of the battery research team at Dalhousie University, said he recommends charging only 70% of the battery per day to extend battery life.

Tesla warned that battery degradation is not covered by ModelS and ModelX warranty, nor does it guarantee that battery capacity must reach a certain level.

As for Model3, Tesla introduced a new 70% battery capacity retention guarantee. Model 3 is equipped with different battery units and new battery pack architecture, but if the statistics on ModelS are available for reference, it won't be a problem.

Battery degradation is often a major concern for new buyers of electric vehicles. To a certain extent, the Nissan Leaf may be blamed because it has many problems in this regard, which is why Nissan now has a more comprehensive battery capacity guarantee.

A recent study showed that Nissan's initial battery capacity was 24 kWh, and battery capacity lost 1/5 after five years of use, while Nissan's latest 30 kWh capacity of the battery lost faster than the old battery.

But Tesla can be said to have a more advanced battery thermal management system than the wind, and the data from the early modelS cars is indeed encouraging.

Tesla CEO Elon Musk has been promoting the potential of Tesla battery packs. He said the company simulated 500,000 miles (about 800,000 kilometers) of mileage and repeatedly tested the battery cycle. After the test, the battery capacity still reached more than 80% of the initial capacity.

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