Due to the complexities of power management and the vast differences between each of the different power management systems available, debugging errors in the battery monitor can be difficult. You will need to determine if the error exists in the battery monitor or is a bug in the information provided by your machine.The following information may be useful for troubleshooting what is wrong with your battery monitor. It is by no means exhaustive. If you find a bug with the Battery Charge Monitor (that is not caused by bad information being reported by ACPI), please report it.
