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Retina 15 inch early 2013 battery.
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Macbook pro retina 15 inch early 2013 macbook pro retina mid 2012 macbook pro 15 inch mid 2012 macbook pro 15 inch late 2011 macbook pro 15 inch early 2011.
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Wait at least 5 hours then charge your laptop uninterrupted to 100.
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Unplug and use it normally to drain the battery.
The mid 2012 and early 2013 15 inch retina display macbook pro models officially provide up to seven hours of runtime in wireless web use according to apple provided test results.
You have to remove the battery to replace the trackpad in the 15 retina.
Factory installed macbook pro batteries are rated to last 1 000 cycles.
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Calibrate your newly installed battery.
Apple formally estimates the same seven hours of runtime for the regular mid 2012 macbook pro models as well as the late 2011 macbook pro line that.
When you see the low battery warning save your work and keep your laptop on until it goes to sleep due to low battery.
Charge it to 100 and keep charging it for at least 2 more hours.
Remove and replace your glued on 2012 2013 macbook pro retina battery.
Ifixit only has instructions for the 13 early 2013 retina trackpad not the 15 and they are quite different.