MacBook Air no user-replaceable battery: when dies what to-do?

Working a lot on laptops I have had a few batteries die on me and it’s normally not a problem as I have a back-up battery with me, but the new MacBook Air has no user-replaceable battery, so when it dies what do you do if you are always on the move.

Engadget noticed this detail, you can see the full MacBook Air features on Apple’s website…we will update you when we know more about how much it will cost you to get sorted it dies.