Currently Being ModeratedMar 8, 2012 8:27 AM (in response to delaney123)
I passed on my original Jan 2008 MBair to my son, still working with no issues. Take care of them and there's no reason they shouldn't last.
Currently Being ModeratedMar 8, 2012 8:35 AM (in response to delaney123)
The battery will eventually fail on anything that uses a battery. I'm not exactly sure what you mean. Apple does have a replacement program for non-removable batteries. They charge pretty much the same as you would pay to replace a removable battery.
If you have other considerations with respect to deciding between a MacBook Pro and a MacBook Air, please search the forum. There have been many posts on this... some quite involved. At some point, people don't want to keep providing the same in-depth responses over and over so you may not get as many responses in a new thread.
Currently Being ModeratedMar 8, 2012 8:49 AM (in response to delaney123)
Please also note, that new MacBook Airs, just as MacBook Pro have the new Apple battery.
Apple is promising a 1000 full charge cycles, before capacity of your battery drops below 80%. That's around 3x the life span of regular laptop batteries.
Currently Being ModeratedMar 8, 2012 1:25 PM (in response to delaney123)
Apple used to have replaceable batteries and I generally needed to replace them after 18-20 months at a cost of about $100. My unibody MacBookPro is 3 years old and the original battery still has nearly 90% of its original capacity. Apple's claim of these batteries having 3-4 times the lifespan of the older batteries seems to be holding true, at least for me.
The new batteries aren't user replaceable, geek speak for you'll void the warranty if you do it yourself. But based on my experience even AppleCare will expire before the battery needs replacing and the replacement is a simple job. These batteries are running in the $120-$140 depending on your source.
Currently Being ModeratedMar 8, 2012 1:38 PM (in response to dwb)
Depending on which Mac you have, you can have Apple replace the battery for you under their replacement program for roughly the same cost as the battery alone (depending on your model):