Originally Posted by drblank
Theoretically do something is different than someone qualified to do it so it won't void a warranty. That's why the battery is sold with installation and it has to be sent to Apple to have a certified tech install it.
Where did you get that information?
First of all there is no MacBook Air battery listed for sale.
Nor is there any reference to voiding a warranty by replacing a battery unless one damages the laptop during the process or damage is caused as a result of installing a non-certified Apple part without permission.
Certainly, you don't have to send the laptop to Apple and/or have a certified tech to install it. If you don't feel comfortable doing so, any qualified Apple reseller should be able to it on the spot. The Air is not sealed and all it takes is a couple of turns on a screw.
Should you still be uncomfortable go via the MacBook Air Out-of-Warranty Battery Replacement Program.
However, if you are paranoid about it, best you don't buy any laptop from anybody.
In any event, there is no necessity to flame Apple, or a solution as presented in this article, by somebody that is more highly qualified and knowledgeable than the combined IQs of the same idiots that contiunally harass this site.