The MacBook Air M4 offers impressive battery life, with Apple claiming up to 18 hours of usage, which is comparable to or slightly better than some previous models like the MacBook Air M3, which typically lasted around 15 to 16 hours depending on the size (13-inch or 15-inch) and usage patterns[1][5][8]. This improvement is largely due to the efficiency of the M4 chip, which provides enhanced performance while maintaining or improving battery life compared to its predecessors.
In comparison to the MacBook Pro models, the MacBook Air M4 generally has a shorter battery life due to its thinner design and smaller battery capacity. For instance, the MacBook Pro M4 models, especially the larger ones like the 16-inch, can offer longer battery life, often exceeding 20 hours, thanks to their larger battery capacities and more robust cooling systems[4][7]. However, the fanless design of the MacBook Air M4 makes it quieter and more portable, which is a significant advantage for users who prioritize these features.
Overall, the MacBook Air M4 strikes a balance between performance, portability, and battery life, making it an excellent choice for users who need a lightweight laptop with robust capabilities. While it may not match the battery endurance of some MacBook Pro models, it still offers a competitive battery life compared to many other laptops in its class.
Citations:[1] https://www.apple.com/newsroom/2025/03/apple-introduces-the-new-macbook-air-with-the-m4-chip-and-a-sky-blue-color/
[2] https://www.redsharknews.com/m4-macbook-air-more-power-more-battery-less-price
[3] https://www.moneycontrol.com/technology/apple-unveils-macbook-air-with-m4-chip-18-hours-of-battery-life-price-features-and-more-article-12956667.html
[4] https://9to5mac.com/2023/10/30/m3-macbook-pro-battery-life/
[5] https://www.laptopmag.com/laptops/macbooks/macbook-air-m4-vs-macbook-air-m3
[6] https://www.laptopmag.com/news/we-tested-5-macbooks-in-2023-this-one-has-the-best-battery-life
[7] https://www.indiatoday.in/technology/features/story/macbook-air-m4-vs-macbook-pro-m4-what-are-the-differences-and-which-is-better-for-you-2689817-2025-03-06
[8] https://www.cnet.com/tech/computing/best-battery-life-laptop/
[9] https://pcoutlet.com/systems/laptops/battery-life-vs-performance-no-compromise-with-modern-macbooks
[10] https://www.tomsguide.com/news/live/apple-something-in-the-air-live-updates