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Mercedes Unveils F1 Battery Upgrade in Austria to Fix Reliability Issues
Highlights
- Mercedes introduced upgraded battery at Austrian Grand Prix.
- New battery focuses on durability, not performance improvements.
- Only Oscar Piastri uses new battery among McLaren drivers.
- Lando Norris avoids battery change to prevent grid penalty.
- Alpine drivers Pierre Gasly and Franco Colapinto get new battery.
- Mercedes aims to stop point losses from battery reliability issues.
Mercedes introduces a revised battery at the Austrian Grand Prix to address season-long reliability failures across its power units, prioritising durability over performance to stabilise results.
McLaren splits specification. Oscar Piastri adopts the new energy store, while Lando Norris stays on his allocation to avoid a grid penalty.
Alpine fits the update to both Pierre Gasly and Franco Colapinto, extending Mercedes’ customer coverage in Spielberg as teams complete the Austrian Grand Prix build-up and finalise allocations.
George Russell’s Montreal win chance fades with a battery fault, and Kimi Antonelli loses likely second in Barcelona. The Race estimates Mercedes leads 2026 reliability points lost.
Norris avoids a battery change to sidestep a grid penalty.
A shipping delay from Montreal slows the rollout. Antonelli confirms a newer energy-store version arrives in Austria. Mercedes says the failure isn’t purely temperature-linked; the update targets robustness, not lap-time.
Mercedes prioritises durability over performance with the latest battery.
Component allocation rules make the split logical. Exceeding the energy-store limit triggers grid drops, shaping strategy.
Expected heat and altitude also raise thermal loads, per FIA heat guidance for Austria and the Austrian Grand Prix weather forecast for Spielberg.
The timing matters. Rivals, including Ferrari and Alpine, plan power-unit steps this weekend. Mercedes seeks to halt its points leak, as explored in our Mercedes upgrades analysis this weekend.
Upcoming races will show whether Mercedes’ fix holds under race stress.
If reliability improves, Mercedes and its customers regain strategic freedom on allocations and penalties, strengthening their championship platforms through the summer.
Visual Summary
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Mercedes’ New Battery: Reliability Overdrive
After a trail of costly failures 💥, the team unleashes a durability upgrade to stop the F1 points drain. Who gets it—and who risks more heartbreak?
McLaren
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Piastri
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Norris
Alpine
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Gasly
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Colapinto
Norris sticks with the old battery to avoid a grid penalty
— risk of failure looms.
— risk of failure looms.
Mercedes: MOST points lost to reliability in 2026
Past failures → New hope
Russell & Antonelli lead high-profile fails
— will Austria mark the turnaround?
— will Austria mark the turnaround?
All eyes on Spielberg: ? reliability or more heartbreak?
James William covers the IMSA WeatherTech SportsCar Championship, from the Rolex 24 at Daytona to sprint-race formats. His reports include prototype performance reviews, GT class battles, and pit-stop strategy insights for endurance-racing fans.
