3 Reasons the M1 MacBook Air Still Wins on Battery Life

Same battery, less power draw Both the M1 and M2 MacBook Air use a 52.6Wh battery, but the M2 has a larger, brighter display and a chip that pulls more power under load, so the M1 lasts longer.

Real-world difference is 1–2 hours In light use like web browsing and email, the M1 gives you about 1.5–2 hours more than the M2. In mixed use with video calls or light editing, it’s roughly 1 hour more.

The M2 runs warmer The M2 chip runs slightly hotter, which drains more battery if you push it. If battery life is your top priority, the M1 is still the smarter buy.