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Kia and Tesla top list in Swedish study of strongest EV batteries

A major Swedish study has revealed which electric vehicles hold their battery health the best, and Kia and Tesla came out on top. 

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Credit: Tesla Asia/X

A major Swedish study has revealed which electric vehicles hold their battery health the best, and Kia and Tesla came out on top. 

Swedish car broker Kvdbil initiated a test of more than 1,300 used BEVs and plug-in hybrids to determine which models retain the best battery capacity over time. Based on the study’s results, the Kia EV6, Kia e-Niro, and the Tesla Model Y were deemed the best.

Kia and Tesla lead the pack

Kvdbil’s test results are bullish for electric vehicles as a whole. The study showed that eight out of ten used electric cars still had at least 90% of their original battery capacity. Kia’s EV6 and e-Niro finished first and second in the rankings, while Tesla’s Model Y came in third. As per CarInfo data, Sweden currently has 12,148 Kia EV6 registered, while there are 48,488 Model Y.

In a comment to the media, test manager Martin Reinholdsson stated, “They are actually better than we thought. We were a bit surprised that there were so many that were this good.”

In a way, Tesla’s strong performance in the test carries extra weight since the Model Y is one of Sweden’s best-selling EVs, giving the test a much larger sample size compared to Kia’s smaller but highly rated fleet. 

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Battery tech, driver habits, and age all play a role

Kvdbil noted that the test’s standout results could be attributed to advanced battery management systems and careful engineering, as noted in a report from the Sweden Herald. At the same time, the study also found that factors like charging routines, driving style, and the age of a vehicle can influence capacity retention.

Rounding out the top ten were entries from Opel, Mazda, Audi, Fiat, Volvo, Citroën, and Volkswagen, as noted in a CarUp report.

This is not the first time that Tesla’s battery prowess has shown its strength. Last year, reports emerged stating that a Tesla Model S 90D from Chesterfield, UK, had traveled 430,000 miles on its original motors and batteries. Over that period, which was comprised of constant Supercharging sessions due to the car being used as an airport taxi, the Model S 90D only lost 65 miles of range.

Simon is an experienced automotive reporter with a passion for electric cars and clean energy. Fascinated by the world envisioned by Elon Musk, he hopes to make it to Mars (at least as a tourist) someday. For stories or tips--or even to just say a simple hello--send a message to his email, simon@teslarati.com or his handle on X, @ResidentSponge.

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Tesla Sweden faced with fresh strike from elevator company

Telecom and elevator service providers are the latest to join the widening labor blockade against the EV maker.

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Credit: NicklasNilsso14/X

Tesla’s operations in Sweden are facing fresh pressure as multiple unions intensify their long-running dispute against the electric vehicle maker. Industrial groups IF Metall and Seko have announced new blockades affecting elevator maintenance and telecom services, escalating their ongoing conflict with Tesla Sweden.

Work stoppages expand to elevator maintenance

Starting October 29, elevator manufacturer Cibes Kalea Sverige will halt all service and maintenance work at Tesla’s facilities under a full blockade ordered by IF Metall. The union’s move targets elevator service visits, which are typically required four times a year in Sweden. Cibes Kalea employs around 70 workers across six sites in Sweden and provides both passenger and freight elevator systems to clients, including Tesla, as noted in a report from Dagens Arbete.

The industrial action follows months of escalating measures from IF Metall, which has aimed to pressure Tesla into signing a collective bargaining agreement. Since early September, the union has initiated several blockades across Tesla’s Swedish network, including work stoppages involving suppliers like Holtab and Linde Material Handling.

This was despite Sweden’s Mediation Institute throwing in the towel at the unions and Tesla’s conflict. “We have tried in every possible way to get the parties to come closer to each other in a way that allows this conflict to end. But now we have come to the end of the road and have realized that it is just as good to end the case,” Director General Irene Wennemo said.

Telecom workers join expanding blockade

In a separate escalation, Seko, another major Swedish union, announced a strike targeting Tesla’s telecommunications infrastructure. “We are now putting a notice on the telecom area and this means that when it comes to networks, fiber or telephony, for example, we will not help where Tesla needs either service, maintenance or new installation of these parts,” Seko chair Gabriella Lavecchia told Sveriges Radio.

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Seko has already initiated blockades against Tesla’s postal service and charging stations. The union expects the telecom blockade to have even broader effects given Tesla’s reliance on connectivity for its charging and digital services. “There aren’t many companies in Sweden today that don’t need telephony, fiber, networks, and I would guess that Tesla needs it more than many others,” Lavecchia said.

With 12 strike notices issued in just a few weeks, the conflict shows no signs of easing as unions continue to coordinate pressure through multiple sectors.

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Tesla shares rare glimpse of Giga Shanghai, posts bullish teaser for Model Y L deliveries

The video was shared by the electric vehicle maker on Chinese social media platform Weibo.

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Credit: Tesla China

Tesla China has posted a rather optimistic teaser of Giga Shanghai and this quarter’s Model Y L deliveries. The video was shared by the electric vehicle maker on Chinese social media platform Weibo. 

Giga Shanghai on full throttle

The recently shared Weibo video featured a rather rare glimpse of the exterior of Giga Shanghai, which, unlike Giga Texas, the Fremont Factory, and Giga Berlin, reportedly no longer allows drone flyovers. As noted by Tesla China in its Weibo post, Giga Shanghai has finished its vehicle shipping center, which allows the company to ship cars efficiently. 

Tesla China posted a video of numerous Model Y vehicles being loaded onto car carrier trucks. And as could be seen in the video, a good number of the Model Ys being shipped from Giga Shanghai were Model Y L units, the all-electric crossover’s six-seat, extended wheelbase variant that only started deliveries last month. 

Insurance registration reports

Tesla China does seem to be moving at full throttle this Q4 2025. Whisper numbers from industry watchers have suggested that the electric vehicle maker recorded 16,500 new vehicle registrations in the week of October 13-19. Considering that Tesla China typically focuses on exports during the first weeks of a quarter, the company’s numbers this Q4 could be quite impressive.

For context, Tesla China saw 5,020 new vehicle registrations in the week ending October 5 and 11,300 new vehicle registrations in the week ending October 12, 2025. The momentum of the Model Y L is also building up, with previous reports stating that the extended wheelbase, six-seat Model Y variant was able to help boost Tesla China’s wholesale numbers to 90,812 units in September, becoming the country’s fourth best-selling mid-to-large SUV in the process.

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Tesla is looking to conduct FSD tests in new Swedish city: report

The proposal appears to have been received rather positively by one of the city’s officials.

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Credit: Tesla Europe & Middle East/X

Recent reports have suggested that Tesla is looking at another city in Sweden to test its Full Self-Driving (FSD) system on public roads. The proposal appears to have been received rather positively by one of the city’s officials.

Tesla FSD tests in Sweden

FSD has already been deployed in numerous territories such as the United States, China, and Australia. However, the system is yet to be released in Europe. As per a recent report from Värmlands Folkblad, Tesla has sent a request for FSD testing to the capital of Värmland, Karlstad. As noted in a CarUp report, Tesla is already testing FSD on motorways after the company secured permission from the Swedish Transport Agency. 

The Municipality of Karlstad has reportedly not issued a decision regarding Tesla’s request yet, though lawmakers seem open to the idea of FSD being tested on public roads. In a comment to VF, municipal councilor Linda Larsson stated that FSD tests in Karlstad “sounds interesting.” Tesla’s FSD tests, if they are approved, will still use safety drivers behind the wheel who will be ready to intervene at any time. 

Tesla pledges to work with the municipality

In its request, Tesla noted that Karlstad is an interesting municipality in which to conduct its tests. The company also stated that it would conduct its operations and tests in close collaboration with the municipality, as well as local entities. Considering the municipal councilor’s comments, it does appear that Tesla might have a solid chance at attaining permission to test FSD on Karlstad’s roads. 

Tesla’s success for FSD tests in Sweden has been mixed. A few months ago, reports emerged stating that the company’s request to test FSD in Stockholm had been rejected by the Swedish Traffic Department. 

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“The Traffic Office is currently working on updating its approach to automation. At the same time, the city and the office are under heavy pressure from other ongoing innovation tests. Our ambition is to actively participate in and learn from the continued development in the field of automation. 

“Based on this, and in combination with the fact that the current test is the first of its kind, which entails certain risks for both infrastructure and third parties, and that it is planned to be carried out throughout the city, the City of Stockholm considers it is currently not possible to approve the implementation of the test,” the Swedish Traffic Department stated.

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