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.