Hey @RehabMan
On macOS 10.13 high sierra ACPIBatteryManager is having some issues while loading up.
I have tried with custom firstpolldelay values like (250, 300, 1000, 2700, 3000, 8000, 16000)
All of them have the same result. There is no override via boot-arg or ACPI for BAT RMCF.
Here is...