Need Help with battery question.

if your truck is APU euquipped id just leave it. if not i prob would

 

I guess it depends on what is running off batteries while truck is off. I would prob just disconnect the main pos cable from the 1st battery.

 

Best to break the main ground.

... Philip

 

Can someone explain why to disconnect? I leave my truck parked for 3, 4 or 5 weeks at a time and never disconnect the batteries. It always starts right up.

 

It eliminates the possibility of parasitic drain..

... Philip

 

I have NO parasites on my truck, maybe some neighbors, but not on truck.

 

All my trucks have always had 4 batteries. I never disconnected battery cable. Just made sure everything was turned off. I have had a truck sit for 6 months and start fine in the summer. Not sure it would have started ok in the northern winter.

 

If you have computers/clocks/inverter, you would have a parasitic drain, so depending on battery conditions!!!!

.... Philip