Best way to add battery disconnect switch?

My 03 now sits for weeks at a time, and must have some sort of phantom power draw.

I was considering just adding a battery disconnect and defer hunting for the issue for a bit.

Do I need to put one on each battery, or will doing one side stop the drain?

Is there a slightly hidden spot that might make it harder to notice, and act as a simple theft deterrent while at it?

Thanks,

Dave

 

For all the effort and cost it would take to rig up a disconnect for the cables I think you would be better off just disconnecting the negative cables when it sits. I'm also guessing that you would need a disconnect for both batteries, since they are connected to each other. I still have power to the radio after I disconnect one. As for theft deterrent, you are better off putting a switch in the ignition wire and hiding that inside the truck. Plenty of places under the dash or behind the rear flap on the cup holder.

 

I would recommend a smart battery maintainer connected to it. I have one for each of our vehicles, zero turn mower, and Kawasaki Mule. Much easier than installing battery disconnect and better for battery life.

Please let us know what you end up doing.

Cheers, Ron

 

I just charge the batts monthly

 

Get two constant-duty solenoids that area large enough to handle the starter load. Wire them into each battery lead and activate them with a toggle switch under the dash.

 

Thanks for the suggestions. I think I found the short and never did this project.