"Smart" Alternator Regulator?

[one_dusty_hoot]

Xantrex has a Model 84-2006-01 smart charger that regulates
the voltage output of the alternator according to what voltage
the batteries want, not what the regulator dictates, 13.5-14.5
VDC, about $125 on Ebay.

Many times after a long car trip my battery top was wet from
overcharging, could this same thing happen to the coach batteries?

I like the idea of a ramp up charge with ability to set charge
voltages.

Any Comments? Any users?

Bob Janes '87FC35 Greenville, SC