Late 2011 MacBook Pro - Service Battery

Hello Everyone,

I have a late 2011 macbook pro with :
Battery cycles - 114 (using it as desktop replacement 100% of the time) and battery health - 94% yesterday and 66% today!

How this happened:
Yesterday i left it open to finish some university downloads unplugged. When i got home after 3-4 hours the laptop was dead. It seems that by accident, i have set the computer sleep to never under - energy Saver - battery.

When i opened it, i got a strange message that some programs might not work as date was set before 2008 and i couldn't access the top status bar. I opened system preferences, top bar appeared and the date was correctly set to 2014. I did a restart, top bar appeared but under the battery percentage i got the system battery message and battery health dropped from 94% to 66%.

Since i can live with my laptop all day plugged in, do i have to replace battery?

Is there any way to fix this? (I have tried SMC reset and now i am trying to do a calibration)

Thanks in advance

SandboxGeneral said:

Give the Apple Notebook Battery FAQ a look through for some ideas of what to do.

When you were checking the battery status and restarting it, was the battery back up to 100% charge?

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THanks for the link.

I did the first check when i firstly opened it (was about 15%) but also when it was fully charged.

maflynn said:

You will eventually.


The only way is to eliminate the message is to bring it to apple and replace the battery.

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Since I'm out of warranty, is it OK if I just replace it myself? I'm planning of buying one battery from owc.

Update....

14 days later the battery health has dropped to 53% from 66%... Seems that buying a new battery is inevitable...

T'hain Esh Kelch said:

Does it matter if you use it as a desktop replacement anyway? 114 cycles in 3 years is not very much.

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I am just worried about the battery itself (swell or something else and then damage my laptop).