Garz

I'm installing dual batteries on the the single tray. Any pictures of your setup would (for those who have done dual batts.) help me out. Thanks.
Larry

Jordan5687

I would like to see pics of this too, and was wondering if I could install the 2nd battery in the toolbox in the bed of my truck, and run the cables that long? I need to make some more room on the turbo side of my truck for some other stuff. Pros cons to running battery cable that long? Thanks, don't want to steal the thread, sorry.

Rick D

Here is a pic from my old 93, More pics Here

Rick

BearKiller

I have one battery under the hood, and two more in a frame-mounted carrier, a long way back in front of the right side spring-hanger.

So long as the cables are on the large order, and protected from damage, there is no reason why you couldn't put the batteries in a trailer and tow them behind.

Look at any big truck and see how far the batteries are from the starter/engine, especially some of the single-axle straight trucks.

At the present, all three batteries are wired parallel, and all three share the load.

My plan is to isolate the two auxilliary batteries, using the under-hood one for starting only, and have all other functions powered by the other two.

That way, I can use lights, compressor, T.V., etc., without the worry of running down my starter battery.

BigWaylon

Greg

Jordan5687

BearKiller, thanks for the info. I've thought about 3 also, but wasn't sure about it. I'm going to be getting a flatbed, with more lights than usual and a front bumper lined with amber clearance lights and wanted them to run the power somewhere else. I wanted to move the battery closest to the turbo cause it's kinda in the way of my custom intake and other stuff I plan on putting there.

GasganoFJ60

Ok. Im not an electrical person at all. Does having dual batteries on our trucks help at all? Does linking the two together give you 24v? If so, wont that burn up the starter along with anything else that has a 12v limit?

BearKiller

So long as you hook all Positives together, and all Negatives together, regardless of how many batteries, you will always only have 12-Volts.

When you connect Positive to Negative, between two batteries (or sets of batteries), you will then get 24-Volts.

BRUISER

your missing a few cables

BigWaylon

dang it!!!

that's why it won't start!! nothing to do with the voltage regulator!!

Thanks Ken!



Greg

wannadiesel

I can't see any benefit to having two batteries in Texas - or three in Kentucky for that matter. My truck always starts fine on one.

Folks living on the frozen tundra will disagree with me, and for good reason.

Jordan5687

I like the idea of having three, won't drain them so much especially cause most my mods will be/are connected to the batteries.

ez_lle71

I had thought about doing this when i bought my 92'and found it had only 1 battery. What is the atvantage of having 2 batterys? I have never had a starting problem with this truck. i am just curious i guess. thanks
ez

wannadiesel

More amperage. It is helpful in very cold weather, as the amp capacity of the battery drops rapidly as the temp goes below freezing. The colder it gets, the weaker the battery becomes - and the engine gets harder to crank. If you see subzero temps in the winter, dual batteries are a great idea.

ez_lle71

thanks wanna, That was the explaination i needed! More amperage is always a good thing for starting a cold engine!!ez

P.S. What if a guy just ran a big yellow top optima battery and stays with a single? just curious.