i dont think there is DIY.. if ur gonna try diy better get those tools and battery from ifixit..

https://www.ifixit.com/Guide/MacBook+Air+13...placement/10950

but the best way to change battery is to send ur MBA to apple authorised service centre.. i read plenty reviews on third party battery replacement and even the OWC battery, they does not last as long as the one apple's..

This post has been edited by jzack: Dec 29 2016, 02:11 PM