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Tesla can solve an annoying part of its cars’ ownership experience with Maxwell’s supercapacitors
When Tesla acquired Maxwell technologies, the electric vehicle community was appropriately excited. Maxwell, after all, works on projects such as dry battery electrode tech and supercapacitors, both of which are believed to hold a lot of potential in the emerging electric vehicle sector. But as the countdown to the highly-anticipated Battery Day draws near, speculations suggest that Tesla acquired Maxwell mainly due to the company’s dry battery electrode tech, not its supercapacitors. Yet according to Andrey Shigaev, CEO of Geyser Batteries, supercapacitors still hold some potential uses for Tesla’s electric cars.
In a brief interview with Teslarati, Shigaev, whose company is developing batteries that use aqueous (water-based) electrolytes, noted that while supercapacitors will likely not be involved in Tesla’s million-mile battery project, there are already a lot of local tasks in an electric vehicle that could benefit from the use of supercapacitors. Among these is smart air suspension, a feature that is currently used in the Model S and X and is expected for upcoming vehicles like the Cybertruck. But beyond this, the Geyser Batteries CEO mentioned that supercapacitors could also be utilized as a superior alternative to the 12V battery that Tesla uses for its vehicles today.
“The more stuff gets electrified, the more power you need to perform tasks. The most classical thing (that could benefit from supercapacitors) and the number one item for Tesla is the 12V battery. Supercapacitors can handle this task. If you have a high energy battery onboard, then this secondary circuit could be powered by a supercapacitor that is very efficient. It will even have an extremely long life cycle. Supercapacitors are lighter too, saving weight. And they tend to be smaller than a lead-acid battery,” Shigaev said.
Interestingly enough, the earliest versions of the original Tesla Roadster didn’t use a 12V battery. Instead, the company used a portion of the Roadster’s main lithium-ion battery pack to supply 12V for the vehicles’ accessories and lights. This did not prove ideal, however, and in 2010, Tesla switched to using a 12V battery for the Roadster 2.0. It should be noted that the 12V battery, which has been adopted in every vehicle since the Roadster 2.0, is used to keep systems such as emergency blinkers, airbags, seatbelt pre-tensioners, the MCU, and other functions operational even when a car’s main battery pack is compromised.
Being one of the few parts of the car that is still based on conventional automotive tech, the 12V battery in a Tesla tends to last only a few years. As noted by Tesla Tap, the 12V battery in a brand new Tesla could last about 3-4 years, but this could be reduced to as little as 1-2 years if the vehicle is driven frequently. This could cause annoyances among Tesla owners, especially since the 12V battery’s health could not be actively observed in the vehicle’s systems yet. Social media posts about 12V batteries in Teslas giving out are numerous, with some owners noting that it is the one aspect of the Tesla ownership experience that is still mildly infuriating.
With this in mind, the use of supercapacitors in place of the 12V battery could be pretty in-character for Tesla. Nevertheless, the Geyser CEO explained that using supercapacitors in place of the 12V battery would present some challenges as well. Among these is cost, since supercapacitors are notably more expensive than standard 12V lead-acid batteries. Yet despite this, the advantages they bring could justify their use, especially among flagship vehicles like the next-generation Roadster and the Plaid Model S and Model X.
“Supercapacitors have a main caveat. There are three drawbacks. First and foremost is energy density, which is ten times lower than lead-acid battery. Second is their price since currently, their price is astronomically larger. The third is discharge. If you leave it alone for almost one month, it would discharge completely. However, if you have an electric car and there’s a high energy battery in the car like a lithium-ion battery, that would be the power source for the vehicle,” Shigaev noted.
Other industry experts have suggested uses for Maxwell’s supercapacitors in Tesla’s electric cars in the past. Auto veteran and Munro & Associates Sr. Associate Mark Ellis previously noted that apart from dry electrode tech, Tesla could tap into Maxwell’s supercapacitors to improve its vehicles’ battery management systems.
“One of the issues with the battery is, when I step on the throttle hard, I’m pulling a lot of energy from the battery. And then, when I brake hard, I’m pulling a lot of energy out of the regen, but the batteries can’t take it fast enough. The batteries get really stressed when you try to pull it up too much, so if I had supercapacitors that I could use as a cushion; so when I need energy quickly, (I can) pull it from the supercapacitors and then fill the supercapacitors back up with the battery slowly; and then when I brake, I can capture more of that regen energy and do the supercapacitors faster. I think that just makes logical sense, because now all of a sudden I’ve got a sponge in front of my main energy source and I’m not stressing (the battery) so much,” Ellis said.
News
Tesla counters Norway’s VAT hike with dedicated consumer bonus
The move follows Tesla Norway’s stunning finish in 2025, where the company saw substantial sales during the final weeks of the year.
Tesla has rolled out a price incentive in Norway, effectively offsetting a notable VAT increase that hit electric vehicle buyers at the start of 2026.
The move follows Tesla Norway’s stunning finish in 2025, where the company saw substantial sales during the final weeks of the year.
A “Tesla bonus”
Once the VAT increase kicked in at the start of 2026, Tesla Norway’s sales cooled almost immediately, as noted in a CarUp report. Tesla’s response was swift, with the electric vehicle maker rolling out what it calls a “Tesla bonus.”
This bonus effectively cuts prices by up to 50,000 kronor across eight model variants. All versions of the Tesla Model Y qualify for the incentive, along with most Tesla Model 3 trims, save for the base entry-level model.
This means that for Tesla Norway’s best-selling vehicles, the bonus effectively restores pricing to pre-VAT levels. This blunts the impact of the new tax and makes Tesla’s vehicle offerings competitive again in Europe’s most EV-saturated market.
Stabilizing demand
In addition to the “Tesla bonus,” the electric car maker is also offering a promotional interest rate for up to three years, with terms varying by model. The incentive applies to orders placed between January 9 and March 31, 2026, with delivery required by the end of the first quarter.
The stakes are high in Norway, where electric vehicles dominate new-car registrations. From the vehicles that were sold in 2025, 96% of new cars sold were fully electric. And from this number, Tesla and its Model Y made their dominance felt. This was highlighted by Geir Inge Stokke, director of OFV, who noted that Tesla was able to achieve its stellar results despite its small vehicle lineup.
“Taking almost 20% market share during a year with record-high new car sales is remarkable in itself. When a brand also achieves such volumes with so few models, it says a lot about both demand and Tesla’s impact on the Norwegian market,” Stokke stated.
Elon Musk
SpaceX gains favor as Pentagon embraces Musk-style defense reform
The remarks highlighted Musk’s improving relationship with the White House, as well as SpaceX’s growing role in U.S. defense.
SpaceX emerged as a clear beneficiary of the Trump administration’s renewed push to accelerate military innovation, as Defense Secretary Pete Hegseth openly praised Elon Musk’s private space enterprise during a visit to the company’s Starbase launch site in Texas.
The remarks highlighted Musk’s improving relationship with the White House, as well as SpaceX’s growing role in U.S. defense.
Hegseth embraces Elon Musk’s pace
Speaking at SpaceX’s Starbase facility in Brownsville, Texas, Hegseth criticized what he described as a “risk-averse culture” among traditional defense contractors and called for faster innovation modeled after Musk’s approach. He confirmed that the Department of Defense plans to integrate Musk’s Grok AI platform into Pentagon systems, which is part of the administration’s efforts to make the U.S. military an “AI-first warfighting force.”
Hegseth stated that the Pentagon intends to deploy AI models across both classified and unclassified networks, signaling a willingness to push past earlier efforts to limit military use of artificial intelligence. His comments aligned closely with President Donald Trump’s recent call for a $500 billion increase in defense spending, Bloomberg News noted. Trump has also warned major contractors that slower production and shareholder-focused practices could put future contracts at risk.
While Hegseth criticized legacy defense firms, SpaceX was held up as an example of how aggressive timelines, vertical integration, and iterative development could reshape defense strategies. “We need to be blunt here; we can no longer afford to wait a decade for our legacy prime contractors to deliver a perfect system. Winning requires a new playbook. Elon wrote it with his algorithm: question every requirement, delete the dumb ones and accelerate like hell,” Hegseth said.
SpaceX’s expanding defense role comes into focus
SpaceX has become one of the U.S. government’s most important aerospace partners. The company holds roughly $4 billion in NASA contracts to develop Starship into a lunar lander, while also serving as a key launch provider for sensitive national security payloads using its Falcon 9 and Falcon Heavy rockets.
During the visit, Musk highlighted that his ambitions extend beyond defense contracts, reiterating long-term goals of interplanetary travel and eventual exploration beyond the solar system. Still, the optics of the event reinforced how closely SpaceX’s capabilities now align with U.S. strategic priorities.
The appearance also marked another step in Musk’s political rehabilitation after a public falling-out with the White House last year. Since leaving his role leading the Department of Government Efficiency, Musk has gradually reengaged with the administration, reconnecting with U.S. President Donald Trump during slain conservative activist Charlie Kirk’s tribute and attending events at the White House. Trump’s also recently suggested that Starlink could help restore internet access in Iran.
Tesla has launched a new Model Y configuration in the “Premium” trim, and it comes with three highly requested features that have launched in markets outside of the U.S. and in other trims.
Tesla announced on Monday night that it has officially launched the Model Y Premium in a seven-seat configuration, which also comes standard with a 16″ touchscreen and black headliner, both of which are featured in the Model Y Performance trim.
The seven-seat configuration is highly requested by consumers and helps fill out the more spacious SUV offering that the lineup has missed outside of the Model X, which prices out many consumers. This new upgrade only costs $2,500 extra for all three features, bringing the cash price to $48,990.
This also comes with the larger 16” touchscreen! pic.twitter.com/aiAxWUTKZa
— TESLARATI (@Teslarati) January 13, 2026
The move to add the seven-seat configuration with the black headliner and additional screen size is a welcome addition, as many Tesla fans have asked the company to come out with an SUV with more seating capacity. Although it is not a full-size SUV, the additional seating will certainly attract some buyers with bigger families.
It appears the third row is slightly more spacious than the past iteration of the seven-seat Model Y, which was available in the previous design pre-Juniper:
Credit: Tesla
However, it definitely still appears to be pretty cramped in terms of legroom. It will definitely be a seating arrangement for smaller passengers, mostly reserved for children.
The other two upgrades are the black headliner, which was launched in other markets and in the Model Y Performance. Many owners have wanted this change, and Tesla listened, but is only offering it with the seven-seat configuration. It also has a larger 16″ touchscreen, also present in the Model Y Performance exclusively:
Credit: Tesla
It is a nice touch to add these highly requested features to the all-electric crossover, which was the best-selling vehicle in the world for the third consecutive year.
Tesla counters Norway’s VAT hike with dedicated consumer bonus
SpaceX gains favor as Pentagon embraces Musk-style defense reform
