If it's maintaining a charging voltage of 14.0 to 14.7 against a fully-charged battery, and never exceeding 15 volts under any circumstances, just drive on and be happy! It's working right!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!