M1 MacBook Air vs M2/M3 MacBook Air: M1 still wins on battery life

The M1 Air outlasts both M2 and M3 models by an hour or two in light use, despite having a smaller battery. The newer models’ bigger, brighter display and higher peak power draw drain faster. Under heavy load the gap narrows, but for everyday browsing and documents, the M1 is the battery champ.