This mixin displays the battery status in all mode windows. There is a generic interface for fetching the status, making it easy to port this module to different APM systems. Currently, the only supported system is the special file `/proc/apm' of Linux systems.
The position of the battery status in the mode window, default 0.2.
The justification of the battery status, default is
Go to the first, previous, next, last section, table of contents.