The 2026 Formula 1 campaign is debuting an entirely new set of regulations with changes to both the chassis and engine, the latter of which has become the biggest talking point.<br>That's because an F1 power unit is now more reliant on electrical energy with a near 50-50 split against the internal combustion engine, meaning battery management is playing a greater role than ever.<br>It might often ...<a class='more' href='https://www.autosport.com/f1/news/how-rear-led-lights-can-indicate-energy-levels-on-f1-2026-cars/10802595/?utm_source=RSS&utm_medium=referral&utm_campaign=RSS-ALL&utm_term=News&utm_content=uk'>Keep reading</a>