Should I get my battery serviced even though I won't be using my MBA off the adapter?

[kylera]

Recently, I've noticed that the "service battery" warning popped up on my 2012 MBA. The capacity is obviously shot given how often I used it on the go. However, I also got a brand new retina MacBook so I really don't have any intention on using my Air outside my home anymore.

Is it worth getting the battery replaced?

 

[JonLa]

Mine is a 2010 but I asked a Support Chat what the meaning of "service battery" was and he said it was triggered by the battery being able to hold under 80% of original capacity.

 

[iKnowMr.Jobs]

Nah man. I have an Air equally as old and intend to upgrade it really soon. If it's not your primary machine anymore, there isn't really much of a reason to invest anything into it at this point. I plan to keep mine as a Windows machine once I finally upgrade.

 

[Samuelsan2001]

Well just keep an eye out for a swelling battery if that happens it can destroy your Mac. At that point you either remove it and keep going or get it replaced.

 

[Rok73]

I might be wrong but doesn't the MacBook still need a working battery even if it's plugged in?

 

[kylera]

I might be wrong but doesn't the MacBook still need a working battery even if it's plugged in?

That is my understanding as well. I can only hope that the battery doesn't expand for the next few years. My MBA will be my backup laptop in case anything happens to my rMB.

EDIT: I stand corrected, at least for now. According to this post: https://discussions.apple.com/thread/5226810?start=0

It is doable, but with conditions.