Chosen Solution
Another question on this subject as no other question/answer thread seems to address my issue. Computer: MBP 15" Retina Late 2013 Original issue: Battery stopped charging & was labeled as “Replace Soon” and laptop would not work when plugged in. Actions taken: After trying my personal knowledge base, checking the internet, and finally calling Apple - ordered a new battery from iFixit. Installed new battery (01-27-2018) and acquired new charger. Remaining issue: MPB works when plugged in battery is labeled as “Replace Now” and shows 29% charge (with no change since I installed). Most of the actions taken in an attempt to fix the issue: SMC reset - multiple times, PRAM reset, HD permissions checked with no issue. Unplugged the battery > SMC reset > plugged battery back in > no change. Whenever I did something directly with the battery I would wait the recommended period of time for capacitors to discharge. The old battery was not in a condition to reinstall for a test and has been recycled. The CoconutBattery app presents the following:
https://ibb.co/bt4rPR Have I missed something looking through the forums which I have yet to try? Is the new battery bad? Your insight and help is appreciated. Here’s a screenshot of the now working replacement battery:
It looks like you failed to calibrate the battery! Lets start there. Follow this guide: How To Calibrate a Mac Laptop’s Power System. You’ll need to reset the SMC following this Apple T/N: How to reset the System Management Controller (SMC) on your Mac after you do this the first time and then calibrate the battery again. Then take a new screenshot of CoconutBattery and post it so we can see the difference.
I would like to see the screen shot after also! I haven’t run into this issue yet, but would love to see if this is the solution incase I do see this problem.