I have a Macbook Air model A1466 (mid 2013 model). I replaced the battery early 2020. It worked as normal again until now. It suddenly switched of randomly and after doing this for a day or 2 it will not start unless on the charger. Even worse, when it enters standby mode, when the lid is closed or when the charger is disconnected it will immediately shut down hard. When the charger is reconnected I need to press the power button to do a cold boot.
First guess was the battery. But when i run
system_profiler SPPowerDataType it gives me this:
Battery Information: Model Information: Manufacturer: SMP Device Name: BQ20Z451 Pack Lot Code: 0 PCB Lot Code: 0 Firmware Version: 2 Hardware Revision: 00aa Cell Revision: 1 Charge Information: Fully Charged: No Charging: No Full Charge Capacity (mAh): 7094 State of Charge (%): 95 Health Information: Cycle Count: 124 Condition: Normal
To me this seems that the battery is ok.
Same when I run a demo version of the app Watts:
I also tried to do a reset of the SMC but that did not change anything.
What can be the issue?