SVOLT has started mass production of its new 80kWh Fortress 2.0 battery for plug-in hybrids, with the first packs rolling off the line at its Changzhou plant, according to IT Home.
The Chinese news outlet said the pack is built for large five- and six-seat family vehicles as well as off-road use.
IT Home reported that capacity rises from 59kWh to 80kWh, a 35.6% jump, while volumetric use and energy density improve by about 6%.
SVOLT, a Great Wall Motor spin-off, also claims peak 6C charging and more than 400km of electric-only range for D-segment plug-in hybrids.
Under ideal conditions, it says 10 minutes of charging can add more than 400km of range. Those are still company figures, but they show how quickly China’s upper-end PHEV market is changing.
Safety is central to the pitch too. IT Home said Fortress 2.0 uses nano thermal-ceramic insulation material and carries a long list of structural, thermal and electrical protection claims.
These include 1,000°C no-fire claims, strong side-impact performance, long water-immersion sealing, high pack torsional rigidity and bottom-impact resistance. SVOLT is aiming to show that a much larger hybrid battery does not have to mean a bigger safety compromise.
SVOLT said the new pack is due to debut first in an upcoming hybrid SUV at the 2026 Beijing Auto Show.
In the larger context, some of China’s latest plug-in hybrids are starting to move away from the old pattern of short EV range and frequent engine use.
If the first vehicle with this pack gets anywhere near those claims in real use, it may feel less like a halfway-step and more like an electric car with petrol backup for the longer haul.
