I have just purchased a disco 4 and would like to know if anyone can help me with the following : I need to fit a second battery with a management system as I connect my fridge/freezer overnight when we go camping. It runs my battery down if I don't have a second.
Where and how does one fit the second battery ? Thanks - Ben

 

i removed the little bottle jack compartment. made a new box, which really does'nt seem necessary because 2 optimas fit fine. I ran them in series. you can cross them for 24volt, but that requires changing stuff and compatibility issues, that i have no desire to get into.
I will probably install a switch so i can turn one off to use for back up/ booster.

 

I have run this set up for nearly 12 years, it handles a 460 amp draw for my winch, 7 HID's a refer and other items without a management system that cost a fortune.
What batterys will you be running?

 

that must be an old picture, is that Dexcool?

 

ah ha, busted.lol

 

Yes, that is Dexcool from long ago.

 

So does anyone make kits for installing Dual batterys in the 3s or 4s?

 

mike what size are these?
Is that the same batt tray as a d1?

 

I have the Hellroaring Isolator in my 2004 Disco with 2 Optima blue tops and I love it. You can run one dead and flip a switch and still start the car in the morning.