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2016/09/28 MacOSX

I started to get some battery warnings in Mac OS X and before long the battery was not working at all (when I unplugged the power cable the computer turned off immediately even though the battery should have been fully charged). I bought a Llano replacement battery online from TMall for 279 RMB. It has a 7150 mAh capacity. The price included shipping and the two torx screwdrivers needed for changing the battery.

To make sure I got the correct battery I checked the model number on the back of my Macbook Air (mid-2013) (mine says "Model A1466" on the back).

There's a good step-by-step instruction on Youtube for changing battery in a Macbook Air:
https://www.youtube.com/watch?v=SsyIT28wirs