First, if you motor
a lot, and also have wind gen, and solar panels
, I doubt you need a smart type regulator. Plus I'm not sure a smart reg. can be used with an alternator with an internal reg.
I have a Delco 108 amp alt. with an internal reg. I also have solar panels. I motor very little, and like to get as much charge out of the alt. as possible when I run the engine
I use a home built alternator controller, similiar to the old Spa Creek controllers.
It's just a hd 0-16 ohm reostat. Most alternators have a method of "full fielding" to get full output, for testing purposes. On the Delco there is an opening in the back where you stick a small screwdriver to ground a tab to the case. If you take the alt. apart and find this tab, and attach a wire to the screw that the tab is connected to, and run the wire out the case, you are all set. By grounding this wire, you get full output.
You shouldn't run an alternator at full output. 75% of rated output is about the max recomended.
Wire a 0-16 ohm reostat in between this wire and ground.
You now have a nanual alternator control. Be aware, that with this setup, you have to monitor
battery voltage while charging, because that with constant output from the alt. the battery will keep rising. I usually try to keep the voltage at 14.6 volts or lower. You need to turn the controller down every now and then as voltage rises.
This setup is not for everyone. An advantage is you can use it to condition the batteries every now and then, by charging to a hi voltage .
With this setup, you can just turn the reoatat down, and the internal regulater takes over.
you can make a similliar unit with a couple of separate resistors, and switches. Use the switches to select which resistor you want in the circuit. The lower the resistance, the more the charge.
Some model alts. to "full field" you need to apply 12 volts to the particular wire.
Another advantage is if your internal reg. fails, you always have the manual one to keep you going.
A good book is the 12 Volt doctors" book by Ed Beyn
Talking to Ed in Annapolis
around 1990 got me started on fast charging.