Advanced solid-state batteries have long been regarded as the holy grail for electric vehicles and Subaru has joined fellow Japanese brands Toyota and Nissan by working to implement these advanced new packs. However, rather than using them in any of its EVs, Subaru is instead utilizing solid-state batteries in robots which build engines and transmissions.

Read: Subaru Is Having Second Thoughts On EVs

The batteries in question come from Japanese electronics firm Maxell Ltd and have been primarily used as backup batteries in industrial equipment, designed to protect against computer memory loss. These solid state cells, like those set to be used by future EVs, have a ceramic-like electrolyte rather than a liquid one. This makes them more energy-dense and allow them to support fast charging than traditional lithium-ion cells.

Why Robots Come First

Maxell’s batteries are less than 1 kWh in capacity, and therefore far too small to use in a vehicle. However, they have been adapted for use with Subaru’s factory robots which usually need battery changes every one or two years. These new batteries can last for up to 10 years.

According to Auto News, Subaru has already introduced the batteries into nine robots at its Oizumi engine and transmission plant north of Tokyo.

“By installing all-solid-state batteries in the industrial robots used at our factory, Subaru aims to reduce both industrial waste and maintenance work for industrial robots by utilizing the long battery life,” the company said in a statement.

Subaru’s EV Balancing Act

A few short months ago, Subaru acknowledged that it was “re-evaluating” its electrification strategy, becoming just the latest in a slew of car manufacturers that have become increasingly concerned with the slowing growth of EV sales in certain markets. However, it recently revealed its second EV for North America, named the Uncharted.

This is the brand’s take on the new electric Toyota C-HR but has a slightly more rugged design. The flagship model has a pair of electric motors that combine to deliver 338 hp and enable it to hit 60 mph (96 km/h) in 5 seconds.

Subaru is stepping up its electric vehicle game in Europe, confirming plans to launch three new battery-electric crossovers by 2026. Developed in partnership with Toyota, the trio brings familiar hardware with Subaru’s own quirky styling choices, which have often sparked debate. The new models include the Uncharted, the facelifted Solterra, and the E-Outback, which is Europe’s version of the Trailseeker.

More: Subaru Built A 338hp AWD EV That Launches Like A Hot Hatch On Caffeine

These additions will effectively triple Subaru’s EV lineup in the region, which until now has consisted solely of the Solterra. All three vehicles are built on the e-Subaru Global Platform, Subaru’s take on Toyota’s e-TNGA electric architecture.

The Subaru Uncharted

Leading the charge is the Uncharted, Subaru’s spin on the Toyota C-HR+. The crossover stands out with a Subaru-specific front end that borrows elements from the updated Solterra, including its headlight design and sculpted bumper. Rugged alloy wheels round out the exterior changes. Inside, the Uncharted gets a squared steering wheel and slightly different interior trims, while sharing features like the 14-inch infotainment display and dual wireless chargers with its Toyota twin.

Buyers can choose between front-wheel-drive and all-wheel-drive configurations, both of which offer respectable performance. Power peaks at 338 hp (252 kW / 344 PS), and the entry-level variant uses a 57.7 kWh battery rated for 276 miles (444 km) of range. A larger 77 kWh option boosts range to 363 miles (584 km) for FWD models and 292 miles (470 km) with AWD.

EU-spec Subaru Uncharted

EU-spec Subaru Solterra

The Solterra Returns, Sharper and Stronger

Moving on to a more familiar member of Subaru’s EV lineup, the Solterra is back with fresh styling, more tech, and upgraded underpinnings. The dual electric motors generate 338 hp (252 kW / 343 PS), representing a healthy increase of 123 hp (92 kW) compared to the original version that debuted in 2022. Furthermore, a larger 73.1 kWh battery pack delivers over 310 miles (500 km) of range between charges.

More: Subaru Trailseeker EV Is Faster Than A WRX STI But No One Knows If It’s A Wagon Or SUV

The styling updates are focused on the front end, with slimmer LEDs and a cleaner design for the bumper. The EU-spec Solterra was shown with glossy black fenders, so it is not clear if higher trim levels will feature the body-colored finish seen in the North American model. The EV also benefits from a new 14-inch infotainment display and improved ADAS.

Meet the E-Outback: Subaru’s Biggest EV Yet

Last but not least, the Subaru E-Outback is the European twin of the Subaru Trailseeker and the Toyota bZ Woodland. It is longer and more spacious than the Solterra, with a boot that is large enough for four suitcases. Subaru shared a single photo of the Trailseeker, so we guess that the E-Outback will look identical, minus the amber indicators.

Performance takes another step up here. The E-Outback is powered by a dual-motor setup producing 377 hp (280 kW / 380 PS), paired with a 74.7 kWh battery that delivers 279 miles (447 km) of range. Designed with adventure in mind, it includes Subaru’s Symmetrical AWD, X-Mode terrain management, and 210 mm (8.3 inches) of ground clearance. It also matches the Solterra’s towing capacity at 1,500 kg (3,307 pounds).

Rollout Timeline

The facelifted Subaru Solterra will be the first to reach European dealers by the end of 2025. The Uncharted and E-Outback will follow in early 2026. Subaru plans to announce pricing details closer to each model’s launch.

It hasn’t been an easy ride for Toyota and Subaru’s first major foray into the EV market. The Toyota bZ4X and Subaru Solterra stand out for their unconventional styling, but unfortunately, not for reasons that win over buyers. Now, Toyota has been hit with a lawsuit in the US that claims the vehicles have 12-volt batteries prone to premature failure, and that the carmaker knew about the problem before it began selling the vehicles.

Filed in California, the class action lawsuit targets 2023 to 2025 model year Toyota bZ4X and Subaru Solterra models. According to the complaint, the 12-volt batteries in these EVs are prone to draining quickly and dying altogether. Although the vehicles are still under warranty and dealers have reportedly been replacing the batteries, the lawsuit alleges that replacements are just as unreliable.

Read: Toyota Kills bZ4X To Welcome New bZ

As with over EVs, the 12-volt battery in question isn’t the one powering the car’s electric motors. It handles secondary systems like the windows, seats, HVAC fans, radio, lights, and wipers. It’s also believed to activate a relay that connects the main battery pack to the electric drivetrain. In other words, it may be small, but when it fails, the car is effectively dead in the water.

Just a single plaintiff has been named in the lawsuit: John Wade. He bought a 2023Toyota bZ4X in March 2023 and says he began experiencing issues within weeks. According to the filing, a series of warning lights lit up the dashboard before the vehicle completely shut down, requiring roadside assistance just to get moving again. Less than 2,000 miles later, the 12-volt battery failed a second time. This time, even a jumpstart couldn’t revive it.

Wade claims he was forced to tow his EV to a nearby Toyota dealership, which replaced the 12-volt battery. In December 2024, this replacement battery died. While attempting to diagnose the problem on his own, Wade paid $4,800 for a Level 2 home charger as he believed the issues may have stemmed from “not using a sufficient EV battery charger.”

Toyota now has until July 3 to officially respond to the lawsuit. For both Toyota and Subaru, the case raises questions about how well early EV issues are being addressed, particularly when they involve something as basic as the 12-volt battery system.