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Honda is working to identify the underlying cause of recurring battery failures after Lance Stroll suffered his 13th retirement of the 2026 Formula 1 season during the Brazilian Grand Prix.
Stroll’s Race Ends Early at Interlagos
Stroll’s afternoon in Sao Paulo concluded after 30 laps while he was running in 18th position, sitting 28 seconds behind his 12th-placed team-mate Fernando Alonso. This outcome added another DNF to his 2026 campaign, though this figure excludes the Melbourne event where he failed to complete enough laps for classification without technically retiring.
During his brief post-race media appearance at Interlagos, Stroll gave a succinct explanation for his exit. When asked about the reason, he stated it was a battery issue, and when questioned on how the AMR26 felt prior to the failure, he replied that it was alright before ending the conversation.
Honda Investigating Recurring Battery Failures
Providing more context in his media session, Honda trackside general manager and chief engineer Shintaro Orihara detailed the team’s ongoing investigation. Orihara stated that they encountered a battery problem on Stroll’s car during the previous day as well as on race day, noting that while they observed the symptoms, the fundamental origin remains unclear.
Orihara explained that reviewing the data and inspecting the hardware could take several weeks. He emphasized the necessity of determining the exact cause and developing countermeasures ahead of next season to prevent the same problems from recurring.
These recent electronic troubles bear a resemblance to earlier season difficulties where engine vibrations damaged batteries, though they may be unrelated. Orihara noted that while reliability had improved in the middle of the season, multiple issues resurfaced in the final two or three races, appearing independent of mileage or aggressive driving.
Qualifying and Wet Weather Performance
Rain during the weekend temporarily masked the limitations of the Honda-powered Aston Martin, allowing Alonso to reach all three qualifying segments in the top ten. Nevertheless, Alonso slipped out of the points on the opening lap and ultimately crossed the finish line in 12th place, finishing 20 seconds behind Nico Hulkenberg in 10th.
Orihara observed that wet conditions helped conceal engine performance shortcomings and limited deployment, though driveability remained a critical factor. He concluded that the team identified areas of positive progress while highlighting specific loops that require improvement for both the upcoming races and the following year.
