Tim wrote:

Elias, what ared you wanting to do?

I want to build a system that will charge the 3 batteries of my sailing
boat in a reasonable time. 1 battery is only used for starting the
engine. 2 other similar batteries are connected parallelly.

As the main purpose is to sail, not use the engine, I want to increase
the output of the alternator and control the charging process by sensing
the voltage on the battery terminals.


"Efficient" ? Your lower amp alt. will produce less drag on your
engine, a higher amp takes more engine hp, to pull itself to amke more
power.

Yep. I still have the power reserve for that.

The Yanmars have may different types of alternators depending on the
application. if you can come up with a make and alternator number it
would help.

I have to check it out.


now comes the question of a battery sense terminal for voltage
control? are you wanting a system to adjust the voltage manually?

Not necessarily. I only use lead batteries so they all have the same
voltage. I still want to compensate the 0,7 volt voltage loss caused by
the battery isolator.

--
EliasA