Robert;
It sounds like it was working for you, as long as you do not
over charge the batteries. Some chargers will prevent this,
some won't. Keep a voltmeter on it until you feel confident.
Also, charging batteries give off explosive gas.
Ken Lewis
http://neksiwel.20m.com/

----- Original Message Follows -----
> In my last van, I took an automatic 50/10/2 amp battery
> charger and wired it into my electric system so that when
> I was on 120v, I could plug it in and it could run the 12v
> system ...............