Doesn't this type of isolator actually feed differing amounts of charge to
each battery bank, based on the amount of discharge, and taper off that
charge as they reach full capacity? ?

-----Original Message-----

These devices are very good. Again, whether using this type of device or
relay, the charge effect will be the same as the alternator will
determine the charge capacity. If both banks of batteries get the 14
volts, then each will take the current it requires. A heavy duty, 150 RV
style relay (looks like a Ford solenoid) coats about $15-$20.

Dennis

-----Original Message-----
Dennis,

Thanks, good info to know. I really wasn't aware of the voltage drop
issue,
among others. How do you feel about Hellroaring's isolator-combiners?
they
claim less than .005 volt drop. http://hellroaring.com/bic75150.htm I
really
don't see a relay system keeping proper charge on tow batteries so
widely
different.

And yes, this is getting expensive just to keep food cool, but a cooler
is
out of the question for the month-long trips I take, in both the
constant
need for ice and space limitations.

Karl