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Dual Battery Setup


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#1 chevz7194

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Posted 11 January 2011 - 03:46 PM

I have been looking at several forum posts and internet sites trying to find a dual battery setup that will work for my situation, but am having trouble figuring out which one to get. I guess isolators wont work with my truck so Im lookin at a battery separator. I have a NBS 07 Sierra 2500 6.0L. Im looking for a dual battery setup that can be charged via alternator and separate from the main starting battery but can be switched over and used to start the truck if my main battery is drained. I dont have any accessories I use just would like a second battery for starting purposes only. Which system would be best? What has brought this on is, since I have owned my truck, on two occasions I have went out to my truck to go to work and found the truck flat dead. No lights nothin. I have read of battery drain issues and the dealer cant find anything wrong. So Im looking at a second battery option.

#2 tanked_darren

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Posted 11 January 2011 - 03:59 PM

Not sure if you have a classic truck or not because some people say NBS and NNBS anyways take a look at this thread:

http://www.gm-trucks...hl=dual battery
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#3 chevz7194

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Posted 11 January 2011 - 04:08 PM

Not sure if you have a classic truck or not because some people say NBS and NNBS anyways take a look at this thread:

http://www.gm-trucks...hl=dual battery


Its style they switched to in 07 from the "classic" style.

#4 Popeye77

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Posted 11 January 2011 - 05:13 PM

I was going to do that to my 08 1500 SLT but the dealer told me it would damage the alternator. Something about (sensor) picking up too much load and shutting off charging???
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#5 8.1HD/ALLISON

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Posted 11 January 2011 - 05:34 PM

I installed mine myself. See this link. my dual battery setup

backhoe6_zps0cfc8c15.jpg
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#6 M. Cueva

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Posted 11 January 2011 - 06:31 PM

The easiest by far isolator:

http://www.perfectsw...ifier-isolator/

Slade_zpsfd1fdb0c.jpg

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#7 M. Cueva

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Posted 11 January 2011 - 06:32 PM

very quick install of the powergate:
http://www.perfectsw.....astics v1.pdf

Slade_zpsfd1fdb0c.jpg

My Truck:
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See my website for Customizations/Upgrades: Silverado Upgrades/Changes
"Based on Intel's dramatic sales warning Wednesday, you might expect rival Advanced Micro Devices to just crawl into a hole and die."


#8 chevz7194

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Posted 11 January 2011 - 09:43 PM

I was going to do that to my 08 1500 SLT but the dealer told me it would damage the alternator. Something about (sensor) picking up too much load and shutting off charging???



I was wondering about that too.

#9 MS03 2500

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Posted 11 January 2011 - 09:54 PM

Posted Image

I know a guy who uses this Harbor freight 10 bucks.


http://www.harborfre...itch-66789.html

Edited by MS03 2500, 11 January 2011 - 09:55 PM.


#10 chevz7194

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Posted 11 January 2011 - 10:02 PM

very quick install of the powergate:
http://www.perfectsw.....astics v1.pdf



Im looking for a way to "self-jump-start". The best system I found so far looks like the Hellroaring BIC-95300B but its pricy. Id be looking at 350-400 by the time its all said and done.

#11 K3LA-6.2L

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Posted 11 January 2011 - 10:17 PM

If you dont have any accessories i dont see the point in getting an extra battery... If anything replace the underpowered oem battery with an odyssey :(

Since i put mine in, its nothing but pure power for my accesories! If you are just running your truck with it, it will be overkill but you will never have to worry about killing it!
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#12 Popeye77

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Posted 11 January 2011 - 10:53 PM

If you dont have any accessories i dont see the point in getting an extra battery... If anything replace the underpowered oem battery with an odyssey :(

Since i put mine in, its nothing but pure power for my accesories! If you are just running your truck with it, it will be overkill but you will never have to worry about killing it!


I was going to run my lights and 12V fans off of it from my camper shell (off the second battery)
2011 Sierra SLT,Crew Cab,Storm Gray,Z60,HD Trailer Pkg,backup camera,trailer brake (integrated)

#13 M. Cueva

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Posted 12 January 2011 - 07:26 AM

very quick install of the powergate:
http://www.perfectsw.....astics v1.pdf


Im looking for a way to "self-jump-start". The best system I found so far looks like the Hellroaring BIC-95300B but its pricy. Id be looking at 350-400 by the time its all said and done.



Um, yeah, that what this system does... look at the animation. When cranking, both batteries are used. when charging, both batteries are charged. when discharging, battery "b" (aux battery) is usually discharged unless you simply hook up all of the electronics to battery "a" (primary battery) and never put a load on battery "b" (aux battery).

http://www.perfectsw...ifier-isolator/

price for that is $300 last time I checked.

Slade_zpsfd1fdb0c.jpg

My Truck:
2006 Silverado Crew Cab with the 4.8 Vortec
See my website for Customizations/Upgrades: Silverado Upgrades/Changes
"Based on Intel's dramatic sales warning Wednesday, you might expect rival Advanced Micro Devices to just crawl into a hole and die."


#14 M. Cueva

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Posted 12 January 2011 - 07:26 AM

Posted Image

I know a guy who uses this Harbor freight 10 bucks.


http://www.harborfre...itch-66789.html


This could work too....

Slade_zpsfd1fdb0c.jpg

My Truck:
2006 Silverado Crew Cab with the 4.8 Vortec
See my website for Customizations/Upgrades: Silverado Upgrades/Changes
"Based on Intel's dramatic sales warning Wednesday, you might expect rival Advanced Micro Devices to just crawl into a hole and die."


#15 chevz7194

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Posted 12 January 2011 - 07:50 AM

If you dont have any accessories i dont see the point in getting an extra battery... If anything replace the underpowered oem battery with an odyssey :(

Since i put mine in, its nothing but pure power for my accesories! If you are just running your truck with it, it will be overkill but you will never have to worry about killing it!



Good point. Those are good batteries. Far better than the stocker. The only reason Im thinking dual batteries is because of the battery drain issue ive been experiencing and others have to. My dealer cant figure out what is causing it.




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