There have been several issues (including unintended key repeats..) after updating to Big Sur, and now the battery issue added to the list. I have MBP 2018 13-inch, with less then 200 battery cycles, and battery condition is "Service Recommended." Since I mostly use it with the power connected, I'm not sure how long this battery problem has been going on. Charge Information:   Fully Charged: Yes   Charging: No   Full Charge Capacity (mAh): 3843   State of Charge (%): 100   Health Information:   Cycle Count: 164   Condition: Service Recommended