should be able to sense voltage and current from windturbine and display
should be able to caculte amp hours to and out of battery and disply
should be able to work with 12V,24V and 48V autosensing
should have adjustable fload voltage and equilazation voltage to happen automatically after 30 days
on full charge extrapower must be diverted to a dummy load.
must have a real time clock, always time must be on display with a backlight.