Same issue. Installed Big Sur 11.1 and battery will not charge. Shows 1% and "Service Recommended." No problems with the battery or charging before installing Big Sur. Battery cycle count in the low 300's. MacBook Pro (13-inch, 2016, Four Thunderbolt 3 Ports); 2.9 GHz Dual-Core Intel Core i5. Battery Information: Model Information: Manufacturer: SMP Device Name: bq20z451 Pack Lot Code: 0 PCB Lot Code: 0 Firmware Version: 901 Hardware Revision: 1 Cell Revision: 3922 Charge Information: Fully Charged: No Charging: No Full Charge Capacity (mAh): 3888 State of Charge (%): 1 Health Information: Cycle Count: 309 Condition: Service Recommended