[Nut-upsdev] Help with Fenton model capability table

[Nadav Moskovitch]

Hi, 
I am working on a patch for FENTON.H  to support some more ups models, 
I wonder if someone can help with further information,meaning  and
importance for the following values that are beeing set in the model
capability table:

	float	lowvolt;
	float	voltrange;
	float	chrglow;
	float	chrgrange;
	int	lowxfer;
	int	lownorm;
	int	highnorm;
	int	highxfer;

Thanks, 
Nadav