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Model A1297 Unibody: Early 2009, Mid 2009, Mid 2010, Early 2011 & Late 2011

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MBP crashes immediately when unplugging power cable

Mid 2010 17" MacBook Pro crashes immediately (or sometimes up to 1 minute or so) after unplugging the MagSafe cable. I have a new battery that is recognized by the Mac (and the Coconut Battery app) and is charging properly. I have reset the SMC and PRAM multiple times and reformatted the SSD and reinstalled High Sierra from a USB drive. I even tried with a clean install of Ubuntu 16.04, with the same issue.

The strange thing is that it works unplugged while I start MacOS in Safe Mode, and it runs the battery all the way down to 1 or 0 % (for multiple hours). I can start up the Mac and remove the cable and then leave it unplugged at the log in screen without it shutting down, but when I press enter and it it starts to load the Mac shuts down.

I should mention that my original battery had a Service Battery status for many years and only ran for 15 or 20 minutes maximum and that is why I replaced it. My first replacement battery wasn't recognized at all and when I reinstalled the original battery it changed to the Replace Now status and the charger was green all the time. That battery also shut down the Mac immediately when unplugging the charger cable. I used the old battery for a few months and the last week the Mac started to shut down sometimes even with the charger plugged in. So I removed the battery and ran the Mac without a battery and ordered the current one.

Edit: Added CoconutBattery images. Will try to fix the log files soon.

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Edit2: Added the system log: system

Edit3: Report from EtreCheck: EtreCheck test report

Update (03/20/2018)

I also found a kernel-shutdown.log file in the same folder (but it is from yesterday) which reads:

Process shutdown log. Current time is 1521464705 (in seconds).

umount[9970] had to be forced closed with exit1().

Coconut while charging:

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Answer this question I have this problem too

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Can you clear out the log files and then after the next crash copy off the log file into a PDF file and paste that here for us to see. That way we can try to isolate whats crashing.

Adding images to an existing question

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I added the system.log file located in /private/var/log/. Is it the correct one?

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For your battery/charger issue: Review this Apple T/N: Apple Portables: Troubleshooting MagSafe adapters make sure your using the correct charger and inspect the MagSafe cable and connector surfaces. If they look questionable take a picture and post it here for us to see.

Also, can you take a screen snapshot of the main window of CoconutBattery so we can see whats happing there. Make sure the MagSafe is plugged in.

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The MagSafe cable is the original L-shaped one and it is a little worn and has been taped (the white insulation is broken) but the connector pins looks fine.

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In looking through the files I do see an app which crashed > TeX Live Utility

Best to locate it and if its set to run disable it and/or delete it.

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TeX Live Utility crashed but it is not what caused the Mac to crash. As I wrote in the question, I have tried with a clean install of MacOS (and with Ubuntu as well) but with no help, so I don't think that it is a software issue.

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Carl Nilsson will be eternally grateful.
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