Chosen Solution

I bought a replacement battery from ifixit and installed it, then I followed the instructions: “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. Charge it again and use it normally.” 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. I tried everything including SMC and PRAM reset but the macbook stopped going into hibernation mode. 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. Now I installed the 2nd new battery and turned the macbook for the first time on and it showed ca. 57% of charge and I continued discharging the battery by using the macbook and then I thought maybe I’m following the instructions wrongly. The calibration instructions aren’t entirely clear to me. For example the first part says “allow it to drain overnight”. Does that mean I’m not supposed to turn on the macbook for the first time at all and the battery is going to discharge by itself to 0%? I don’t believe the battery can drain to 0% after one night sitting in a turned off macbook, right? The second part of the instructions “then charge it to 100% and drain it again until your MacBook Pro shuts down automatically. Charge it again and use it normally” is pretty clear to me since it indicates you are supposed to use the macbook until it shuts down automatically. So now I have a turned off macbook on ca. 40% of charge (initial delivered battery charge, 0 cycles) and I have no idea what to do since I’m afraid I could run into the same problems as first time. Could someone provide a clear step by step guide what to do after replacing the battery. Is it necessary to reset SMC again. If yes in which step? Thanks. TL;DR: How to correctly calibrate the battery after replacement, step by step guide. What does “allow it to drain overnight” mean? To drain it by using the macbook or to let it drain in a turned off device (which would take way longer then only 1 night)? Is it necessary to reset SMC?.If yes in what step?

So the solution for me was setting the hibernation mode to 25 instead of 3 by executing following command: sudo pmset -b hibernatemode 25 Now the macbook goes into hibernation every time it reaches 5% and my work gets saved. This hibernation mode is “deep” and it saves al the RAM content as an image to the disk.

Here is an easy way to discharge. a) First you absolutely need to go to Settings —> Energy Saver –> Battery and check “Prevent computer from sleeping automatically”. b) Start a movie, either on iTunes or DVD or similar, and have it loop when the laptop is not plugged in. This will drain the battery (normally it will play the movie around 2 times depending the length of the movie, and the laptop will turn itself off either a hard shutdown from lack of power or sleep due to low power. c) Then once this is done, charge fully and repeat 2-3 times. This should then properly calibrate the battery.

Apple no longer recommends “calibrating” batteries on Unibody MBs or newer. The batteries are smarter now.

I have the same problem, slightly different parameters. Factory battery didn’t offer even 90 minutes of run-time and would suddenly die, so I wanted to replace it (laptop was purchased from OWC). I also managed to wrestle a replacement battery from them as this used laptop did NOT provide the battery life they said it did…. but it was a HUGE fight… System Reports “Service Battery”. They had me chase my tail for a while, making me run that useless coconut battery app… so I jumped through all the hoops they required (hoping I’d just go away) but I’m a tech and persisted through it all. The replacement battery shows 1% charge… I think it came with about 5-9%, OS 10.13 shows AC 85W adapter is connected, I can see ALL battery info in System Profile, but the NEW battery is “Not Charging” and “Replace Now” message is also present . No SMC, PMU or PRAM etc resets change the status. The AC adapter is orange to suggest the battery is charging, but it never does. Either OWC sent me a door-stop instead of a new replacement battery OR there’s something wrong with the PMU hardware of the logic board. No amount of “typical apple keyboard witchcraft” has worked to solve this problem. Putting the old battery back in, and it works just as it always has (poorly)… says it has a long run-time, but dies prematurely, suddenly and without warning about 70min into use. This will be the last apple laptop ever in my household.. already moved away from iPhones 3 years ago… so this next move with their generation after generation of faulty laptop batteries wasn’t entirely unforeseen in driving me away. I agree with others as well on the topic: what a ridiculous process one must endure to replace a component we KNOW will need replacing in 3 years at MOST… lets all just be thankful Apple doesn’t spec and commision the mfg of batteries in Tesla cars or electrification of the automobile would FOREVER elude humanity :-/

I am having the same problem. Mid 2009 Macbook Pro, running OSX 10.11.6, obsolete, no longer Apple supported. My original battery lasted 10 years, needed it replaced. I followed all the instructions as to calibrating the battery and resetting SMC and PRAM. It now sleeps at 80% of charge. Sometimes a key stroke will wake it, sometimes not. It always wakes after closing the lid and waiting a good 30 seconds for whatever unfinished sleep process to complete. If I continue to wake it in this manner, eventually the charge will fall below a certain percentage and it will run until the battery depletes itself. That charge level is somewhere around 77-78%. I have not tried the above option yet. The logs clearly shows that the power management system knows that the battery has 80% of charge remaining. So the issue is originating somewhere else. I have performed multiple SMC resets, both by a.) removing the power source and the battery connection and, b.) through the shift-control-option-power key combination while off. Setting hibernatemode to 25 might be a quick fix, but it doesn’t resolve the issue. There is a setting somewhere else that is telling the computer to sleep at 80%.

I’m having the same problems with a MacBook Pro 2011 I dusted off the logic board. All battery connections and all power supply connections. The battery is not charging properly. The replacement battery is not the best quality, this is another problem. So I built my own battery: I replaced the battery cells. I found a bad wire on the battery so I renewed the bad contact. It’s been 2 days and sometimes the battery works a little. I think the MacBook Pro 2011 is not a good MacBook Pro. It has a lot of problems. My Macbook Pro 2012 works very well. My Macbook White 2010 works perfectly. I’m using OS X Mavericks and I have no issues with OS X Mavericks. It works great. I only have a lot of problems with High Sierra and Catalina on Macbook Pro. I think the problem is with the newer Mac OS. and some macbooks don’t work very well. When I find the battery problem I’ll write how I fixed it …- Greetings…- Nobody