Mercedes believes it has identified the source of the technical problems that affected George Russell and Kimi Antonelli at the start of the 2026 Formula 1 season. According to technical director James Allison, the electrical faults that led to retirements are largely linked to the same area of the battery system, and the introduction of new modules should improve the team’s reliability in the upcoming races.
In an interview with the Nu Silver Arrows Radio Show, Allison explained that the issues were not identical, but had a related origin: “I think anyone who follows the sport closely has seen that this has been hindering some Mercedes-powered cars so far this season. They are not all identical, but largely originate from the same area of the battery. I believe most risk factors have already been understood.”
“And with a bit of luck, as we begin to introduce the new modules throughout the season — we refer to the battery as a ‘module’ — our luck as a group should improve. Obviously, for us, this is something important. Those retirements are very, very painful,” said the technical director.
Russell and Antonelli each retired from a race due to electrical problems related to the battery. Additionally, the British driver also faced a failure during China’s qualifying session, which affected his weekend. Allison stated that Mercedes took a more conservative approach while investigating the faults:
“When a fault like this occurs, at first and perhaps before it is fully understood, the team tends to take a small step back to be more cautious with the equipment, pushing it a little less, just to give a bit more resilience to the equipment that is obviously suffering,” he concluded.
Despite the issues, Mercedes leads the Constructors’ Championship with 262 points, 72 ahead of Ferrari in second place. Antonelli leads the Drivers’ Championship, while Russell sits in third.
