[VAC] Re: Battery question

["Mitch Hill - K1FH" <fmhill@xxxxxxxxxx>]

Dave,

It should only charge when the truck is running.  You can get a 
relay at your friendly neighbourhood parts store to put in the truck 
to only connect the trailer battery cable to the truck battery when 
the truck engine is running.  These relay are about $15.00 and are 
cheap insurance...  

A great place to get a high quality cable for the battery system is a 
Welding Supply shop.  I purchase 4 Ga. stranded cable with a 
heavy duty rubber jacket from BOC Gasses/Welding supply, they 
stock 4ga in 25 ft put ups for $15.77 

This is a very high quality cable and is made to be flexible. It has 
hundreds of fine strands of pure copper. I find this cable stands up 
very well in  cars, trucks, trailers and boats. I have never had any 
trouble with it...  I do high power emergency communications 
systems in both off road and on road vehicles and use the same 
technique in my Airstream and truck.  

TNX, 73, Mitch  - K1FH