I am new here so thank you for the welcome! I am having a few issues with my Thinkpad X201 running Ubuntu 18.04 that I was hoping you could help me with.

Most of the time, everything is fine with a brand new battery off of ebay. Things work well.

Sometimes, completely randomly, the battery will jump from anywhere down to 5% then drain to 2% then stay at 2% for the next few hours (until it is fully drained I assume)

The laptop also sometimes randomly powers off completely, the logs show no errors or anything like that (as far as I can tell).

Please let me know if there is anything I can do or if you need more info. Thank you for the help.


The only thing you can do is to replace the battery. Because the battery itself is the source of the erroneous state of charge readings.

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