That's charging and depleting the battery completely every 24 hours, though, so if you used the machine half as much, you'd imagine you would get six years. As Kappy mentions, charge it until it is full - leaving it plugged in after the battery is fully charged will not harm the battery, as charging stops at that point. But there also is no inherent benefit in leaving it plugged in for any specified period of time, as charging only occurs until it is charged, and stops after that. ( 0) 0. I think Apple calculates 8-9 hours just when you turn your macbook-pro on without wireless or any application running and also no keyboard light and with lowest brightness. my macbookpro keeps battery for average 2 or 2.5 hours. you can find helpful information here. To charge the battery on MacBook Air with M1 chip, use either of the Thunderbolt ports and the USB-C Charge Cable connected to the power adapter. Note: With the USB-C to MagSafe 3 Cable and the optional 70W USB-C Power Adapter, you can fast charge the MacBook Air with M2 chip up to 50 percent in around 30 minutes. Check the battery’s charge. Average-at-best webcam. $999 at Apple $1000 at Best Buy. How we rate and review products. The base MacBook Air starts at $999 with a 1.1GHz dual-core Core i3 processor, 8GB of RAM, and 256GB of FAQs on M1 MacBook Air Battery Life. How long should the battery last on an M1 MacBook Air? The M1 MacBook Air is rated for up to 15 hours of wireless web use, but realistic expectations based on mixed usage are around 8-10 hours. Does screen brightness affect the M1 MacBook Air’s battery life? Yes, screen brightness is a significant factor. How long does Mac battery last? It all depends on the Mac model you own. For most new Macs, it is normal for the battery to last for up to 12-15 hours of wireless web on a single charge. Charge capacity is 1000 cycles, which is around 5 years of use. How to save battery on Mac? To get to it, you can: Click on the on the Battery icon on the right of the Menubar. Click on the name of an app using significant energy. Look at Time Remaining at the bottom of Activity Monitor, once it launches. Alternatively, you can: Launch Activity Monitor with Spotlight, LaunchPad, or Finder. Click on the Energy tab at the top. Battery Health Management should be checked; if not, you almost certainly want to enable it. (Mac laptops with Thunderbolt 3 currently include the MacBook Pro models since 2016 and MacBook Air Battery life expectancy: MacBook Pro: Before 2015: 3 – 4.5 hours: MacBook Pro: 2015 – 2020 (included) 4 – 6 hours: MacBook Pro: From 2021: 8 – 10 hours: MacBook Air: 2011 – 2012: 3 – 4.5 hours: MacBook Air: 2013 – 2020 (included) 5 – 7 hours: MacBook Air M1: 2020: up to 9 hours G7gULu.