Adding another 12 volt Battery
Planning a trip in October in upstate new York to be there for the birth of our new grandson and was thinking of adding another battery to my 1998 lance 990 legend to run the propane furnace. Ge...
Forum Discussion
poncho62 wrote:
My GMC pickup has a 2nd battery tray under the hood. I put an RV battery there with an isolating solenoid. This keeps that battery and the trailer battery separate from the truck engine battery, but the alternator still charges them when needed
Our pickup truck has a space for a second battery. I can buy an isolator and then have 12V available at the hitch receptacle.
If one seriously depletes the TT coach battery, should I take that battery out of the system and then use the auxiliary battery under the hood? I presume that is how it is done. Should I just put a knife switch on the coach battery?
Connecting two batteries of a different design in parallel creates problems, IIRC. If the two were in parallel, some charge would move to the depleted battery, then I don't know what would happen.
