Don't Buy a New MacBook Air; Replace the Battery Instead
Amazon.com: E-YIIVIIL New Replacement Battery Compatible with Apple MacBook Pro 13'' A1708 MLL42CH/A MLUQ2CH/A Late 2016 Mid 2017 Version A1713 Internal Battery + Tools : Electronics
Get longer battery life with new MacBook feature
Should you replace your MacBook battery or pay Apple to do it? | Macworld
Apple One More Thing event: Tech giant unveils new MacBooks with 'longest ever battery life'