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dual battery kits: what would you use?

Kain

Kain

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I found a couple but wanted the brotherhoods opinion before i order it.(my b-day present to myself)
link below of what i found. which one would u use?
I would like it automatic but painless has a good rep just expensive.

https://www.summitracing.com/parts/prf-40103

http://www.ebay.com/itm/Dual-Batter...ash=item3af01f66c9:g:0qgAAOSwd2xXP2VK&vxp=mtr




or make it by piecing together stuff like this

https://www.amazon.com/Stinger-SGP3...d=1504896381&sr=8-5&keywords=dual+battery+kit


or blue sea
https://www.bluesea.com/products/7650/Add-A-Battery_Kit_-_120A
 
Hard to say. They all look good. The ones with the selctable switched solenoid looks good. The Blue Sea one looks a lot like the factory original ones that GM trucks came with. My old 1985 K30/dually/ camper special came with a factory dual battery set up
 
I have the big solenoid painless kit that lets you select what mode you want and I love it. Like you said it isn't exactly cheap but you know what they say....
 
I love my Blue Sea. It's just straight up easy.

I'm not familiar with any of the other kits but I like the fact the blue seas is separated automatically and combined for charging etc. Remote toggle switch is what I use when I want to manually separate them
 
I have the blue sea. No complaints other than I need to rewire a lot of my accessories. I had them to the primary battery and I want to get that down to where it's starting only.
 
I've got the blue sea max switch hidden underneath above the frame rail and the hell roaring isolator. I would agree with airemsdown that it's a great system.

3FFA2A59-5718-4EFA-A011-914F2EAC4C5C.JPG
 
No it doesn't. I made my own out of double aught welding cable.
 
i was going to cheat and buy battery cables and cut em up to what i need. cheaper
 
Can you just use the Blue Sea Switch and not the Charging Relay? If the Switch is ON then doesn't both batteries get charged and When the switch is OFF aren't the batteries discounted from one another? What does the Charging Relay do, I guess I don't understand?
 
I have been wanting to put a dual battery setup in my blazer as well. Ive been gathering parts whenever I can find them. I finally found a drivers side battery tray out of an old Chevy that was hidden in the junkyard. I just want to keep it simple so I don't really know what all the parts do in the "kits" you can buy.
 
me neither thats why this thread so i could learn. een reading a lot about them but still dont know enough.
Want automatic charging and to be able to turn it off, i think im leaning towards blue sea.
 
I have a couple of Blue Sea switches ( Not the kit you have posted ) Great quality, would buy their product again.
 
one of the reason for blue sea is it is marine so playing in the mud wont hurt too bad
 
nbrown2500 said:
I have been wanting to put a dual battery setup in my blazer as well. Ive been gathering parts whenever I can find them. I finally found a drivers side battery tray out of an old Chevy that was hidden in the junkyard. I just want to keep it simple so I don't really know what all the parts do in the "kits" you can buy.
Click to expand...
kinda corny but explains it a little

 
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