A new test confirmed the 644 km power reserve of the Tesla Model S


The latest version of Model S – Long Range Plus – was introduced in early 2020. During the EPA tests, its run on a single charge was estimated at 630 km. Around the same time, Ilon Mask reported that his company cars are close to reach a range of 644 km (the coveted 400 miles).

Ilona Mask’s goal of creating an electric vehicle with a power reserve of 400 miles (644 km) is likely to be achieved very soon. As of February 15, the Tesla Model S has a new Long Range Plus kit to replace the Long Range, which is no longer in the configurator. The mileage on a fully charged battery is now about 630 km, which is almost 28 km more than the Long Range.

Tesla S
Tesla S

The Model X electric crossover also has a similar version. It now has a cruising range of 565 km, which means it can travel 37 km further than the previous version. However, updated specifications of both the sedan and crossover have not yet appeared on the website of the U.S. Environmental Protection Agency (EPA).

The Tesla company has reported, due to what technical solutions Model S and Model X received additional kilometers of travel on one charge. The only visible change accompanying the addition of the word “Plus” to the equipment name is the new design of the 19-inch rims for the Model S. Most likely, improvements in the equipment of cars have been made earlier, and the new versions are associated with the optimization of the software.

As Ilon Mask explained in his Twitter posting, all of the Model S and Xs released in the past few months can actually go more than stated in their EPA specifications. Therefore, after a free software update “by air” they will also have a power reserve, like the versions of Long Range Plus.

At the moment this package is the basic one for Model S and Model X. And with its appearance, the cost of electric cars has not changed. As before, the price of a premium sedan in the configurator on the official website of Tesla in the U.S. will start at $79990 without discounts, and the Model X crossover – from $84990.

Thus, in eight years of production, the power reserve for the Model S has increased by more than 200 km (from 426 to 627 km) when measured in accordance with EPA standards. However, it is not always possible to achieve this mileage in real life. For example, in the test carried out by the Car And Driver edition, Tesla Model S Performance drove only 357 km out of the 560 km claimed by the EPA at 120 km/h on a continuous track.

The changes, which allowed an increase by 28 km in maximum mileage without a recharge compared to the previous modification, were introduced gradually over the past year. Therefore, to launch the new Tesla version, it was enough to change the name of the car and pass the tests again, perhaps by updating the software beforehand.

Tesla Car

When presenting the results for the first quarter of 2020, Ilon Mask announced that the Model S in the current version can overcome 644 km on one charge. However, this figure was not obtained because an error was made when testing on the EPA cycle.

According to the general manager of Tesla, the U.S. EPA experts who conducted the test during the cyclic test left the key inside the machine and did not close the door. This resulted in increased energy consumption, as the electric vehicle could not go into sleep mode.

Representatives of the EPA deny it, but Ilon Mask believes that if the test is repeated, the power reserve of 644 km will be officially confirmed.

Tesla Car

Norwegian video blogger Bjorn Neeland, who often tests electric cars, decided to check the power reserve of the Model S. Judging by the video he published, after he drove the Tesla Model S Raven 617 km, the battery charge level was 4%. That is, with a full battery discharge, the 644 km could well be achieved.

During the test at 15-17 °C, Bjorn Neeland drove at a constant speed of 90 km/h, although in some places he was allowed to drive 20 km/h faster. The electricity consumption was 145 Wt/h/km.

Interestingly, the Porsche Taycan tested by Björn Neeland showed 172 Wh/km in a similar test. It is true that the Taycan was a little colder during the test, but this does not explain this significant difference in energy efficiency.

Although Björn Neeland’s test cannot be accepted to disprove the official EPA results and does not fully correspond to the actual operating conditions, it does lead to an important conclusion: the Tesla Model S can drive 644 km without a recharge if you drive at 90 km/h.

And brand new, but not yet proven: The new Tesla Model S record – 900 km run on one charge

Two years ago, Casey Spencer set a seemingly impossible record. He drove the Tesla Model S 810 km through the territory of two states, which at that time was 82 km higher than the previous achievement of Norwegians Bjorn Neeland and Morgan Torvolt and 376 km higher than the passport characteristics of the car. The electric car, which Casey was driving, had an average speed of about 30 kilometres per hour.

And a few days ago, Belgians Stephen Peters and Joery Kools set a new world record for the range of the Tesla Model S P100D without recharging. In less than 24 hours, they drove the 901.2 kilometres. They’re reporting this on the Silver Lining blog.

New Test
New Test

To set a record, they laid a ringed route of 26 kilometers along the roads of the village of Doole in East Flanders province. To warn other road users that the car is participating in an experiment, a large plate with the inscription “Test” has been affixed to the rear window. As Peters and Kools have found out, the Model S shows the greatest economy at 40 kilometers per hour. So they tried to stick to that speed for the whole route.

To set the record, they laid a ringed route of 26 kilometers along the roads of the village of Doole in East Flanders province. To warn other road users that the car was participating in the experiment, a large plate with the inscription “Test” was put on the rear window. As Peters and Kools have found out, the Model S shows the greatest economy at 40 kilometers per hour. So they tried to stick to that speed for the whole route.

As a result, the battery power was enough for 23 hours and 45 minutes. The power plant consumed 97.4 kilowatt-hours of energy, and the average consumption was 108 watts per kilometer.

The Tesla Model S P100D is equipped with a 100 kilowatt hour battery pack. From a site up to 96 kilometers per hour, this Ludicrous-activated maximum capacity machine accelerates in 2.5 seconds. Last year, the U.S. Environmental Protection Agency (EPA) confirmed that the electric vehicle has a power reserve of 315 miles (507 kilometers).