For example the first part says "allow it to drain overnight". The calibration instructions aren't entirely clear to me. 57% of charge and I continued discharging the battery by using the macbook and then I thought maybe I'm following the instructions wrongly. Now I installed the 2nd new battery and turned the macbook for the first time on and it showed ca. I explained all of this in detail (including coconut battery screenshots) to the customer service and they send me a new battery saying the one I received was damaged. I tried everything including SMC and PRAM reset but the macbook stopped going into hibernation mode. When I turned on my macbook after the replacement it showed a charge of 59%, then I used the the macbook until it turned off automatically, but the problem was it didn't go to hibernation on about 5% as usually, but it suddenly turned off on about 18% and all work in progress was lost. "Calibrate your battery before using it: allow it to drain overnight, then charge it to 100% and drain it again until your MacBook Pro shuts down automatically. I bought a replacement battery from ifixit and installed it, then I followed the instructions:
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