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  #1  
Old 06-10-2013, 06:56 PM
spudkilla224 spudkilla224 is offline
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Default Separate Voltage System For System.

What would make it possible to run a second voltage system just for the stereo set up, such as an 18 volt current system, but still keep the stock electrical system voltage. I'd be adding a separate battery for the stereo, and I'd like to be able to wire a switch so I can run the stock electrical system, but switch on the 18 volt wiring system.
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  #2  
Old 06-10-2013, 07:53 PM
Whiston Whiston is offline
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Default Re: Separate Voltage System For System.

It's possible, but to what end?
Generally you would only implement a system like this in a competition system where a limited quantity of amps can be used and you're trying to get as much power per amp as you can.

If you did want to do this though, you will want to make sure you have a 12 volt tap for your trucks electrical system.
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  #3  
Old 06-10-2013, 07:57 PM
spudkilla224 spudkilla224 is offline
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I'm planning on competing later on down the road, what would I have to do to run an electrical system?
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Future Mods: Full Wrap Around Rear Bumper, 2" SCH. 40 Pipe Brush Guard, Paint Fiberglass Topper, Projector Head-Lights
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  #4  
Old 06-10-2013, 08:30 PM
Whiston Whiston is offline
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Default Re: Separate Voltage System For System.

New regulator and a 12/16 volt battery.
You can charge a 16 volt bank at 18 volts, for your twelve volt tap you can either tap your own batteries, run a series of two volt cells, or find a dual voltage battery like a turbostart.
Each option has it's down sides.

----------

Just noticed the Kinetic 2416.
Probably the best solution to divide your voltage up.
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  #5  
Old 06-10-2013, 10:23 PM
spudkilla224 spudkilla224 is offline
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What would be the advantages and disadvantages of each of those types of systems?
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Future Mods: Full Wrap Around Rear Bumper, 2" SCH. 40 Pipe Brush Guard, Paint Fiberglass Topper, Projector Head-Lights
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  #6  
Old 06-11-2013, 07:07 AM
Whiston Whiston is offline
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Default Re: Separate Voltage System For System.

Running a 16/12V battery, they had typically a very weak 12 volt terminal, but it looks like this newer Kinetic one is a better 12 volt tap.
With the 16 volt setup, you would ideally match your batteries in the back with your vehicle battery in the front. If you ran all Kinetic batteries as a 16 volt setup, with the one 12 volt terminal in the stock location, then you don't have any issues.
2 Volt cells are awesome, you can arrange 8 in series and tap onto the 6th one for your 12 volt terminal. If you can find a good deal on them, they would work great in the back also, depending on the size of cells you find.
If you wanted to go the cheap, and slightly hazardous to install route, then you can use all the same economic cells (golf cart batteries) and drill and tap your own 12 volt terminal into them and run your 12 volt back to the front of the truck. I can not think of a safe procedure to do this, but if you aren't afraid of a little battery acid, or welding your drill to the plates inside then you might be crazy enough to consider this. I DO NOT CONDONE THIS, but it has been done. Just sayin'.
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  #7  
Old 06-11-2013, 10:03 AM
spudkilla224 spudkilla224 is offline
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What are the size of the 2 volt cells? And would an isolator be a good idea to incorporate? If so how many isolators would be needed?
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Future Mods: Full Wrap Around Rear Bumper, 2" SCH. 40 Pipe Brush Guard, Paint Fiberglass Topper, Projector Head-Lights
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  #8  
Old 06-11-2013, 10:34 AM
Whiston Whiston is offline
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Default Re: Separate Voltage System For System.

2 volt cells come in sizes ranging from tiny to 1F capacitor size to larger than a typical 12V battery.
As far as an isolator is concerned, again, for what purpose?
Honestly, if it's a daily driver that you might go to a few shows with, then a higher voltage system isn't really an appropriate answer. If you're building strictly a competition system, then you won't require an isolator because you'll never just be draining your battery system for an extended period of time.
If you are hell bent on running an isolator, I don't see the requirement for more than a single disconnect point anyways.
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  #9  
Old 06-11-2013, 10:56 AM
spudkilla224 spudkilla224 is offline
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Would running 3 6 volt batteries work to get the required 18 volts?
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Future Mods: Full Wrap Around Rear Bumper, 2" SCH. 40 Pipe Brush Guard, Paint Fiberglass Topper, Projector Head-Lights
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  #10  
Old 06-11-2013, 12:48 PM
Whiston Whiston is offline
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Default Re: Separate Voltage System For System.

That all depends really. That would actually be fully charged at roughly 19.3 volts. To charge that system, you would need to run your alternator/charger at 21+ volts. For competition purposes, that exceeds the allowable limits. As far as if it can actually be done, maybe, but now you are well outside the manufacturers specifications. I would be quite leery of running my equipment on that high of a voltage.

An "18 volt" system is an 8 cell lead acid bank which should float at 16.8 - 17.2 volts. You run the charging system at 18v.
Likewise, our trucks stock electrical system is a 12 volt (12.6-12.9 float) with a 14.4v charging system.
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