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Isolator or separator?

This is a discussion on Isolator or separator? within the Lighting, Stereo and Electrical forums, part of the Technical category; I am considering adding a second battery for new accessories I will be adding. Do I use a battery isolator, or separator? I also read ...


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  #1  
Old January 5th, 2013, 04:57 PM
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Isolator or separator?

I am considering adding a second battery for new accessories I will be adding. Do I use a battery isolator, or separator? I also read somewhere on another post that both batteries have to be the same. Does this mean I have to take my stock battery out if I add a Odessey as my second battery?
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  #2  
Old January 5th, 2013, 05:07 PM
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Re: Isolator or separator?

I used an isolator on my S with the battery from an xp as the second battery (they are different) No problem. I now have two xp batterys with the same isolator.
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Old January 5th, 2013, 05:11 PM
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Re: Isolator or separator?

I seen a lot of post that people use the sure power 1315, put it says that's a separator. What's the difference between the two?
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Old January 6th, 2013, 06:30 AM
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Re: Isolator or separator?

maybe this will clear it up some.

Either when connected correctly will have the batteries isolated from each other and they would not have to be the same size. Only when you are paralleling them would you need to use same batteries, otherwise one would drain the other when key is off.

A passive isolator is the cheapest and it will use about a 1/4 volt of the power.

I use these.

Now the real trick is wiring them. You should find the charge wire from rectifier (voltage regulator) cut it and run that wire to the input on the isolator. Run a 12ga wire from bat one on the isolator to the start battery and a wire from bat 2 on the isolator to battery 2

This way the charging system is charging both batteries but when your accessory battery dies the starting will be fine. I would use a deep cycle for the accessory battery.

The only thing this set up lacks a more expensive sperator is the ability to turn the charging off from second battery.

What ever you use please remember about cutting the charge wire. Also, tape or terminate the cut wire you do not use going into the wiring harness as it will be hot by being back feed.

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Old January 6th, 2013, 05:07 PM
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Re: Isolator or separator?

Thanks Todd, which isolator do you use? Also is the stock charging system strong enough for two batteries?
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Old January 7th, 2013, 06:21 AM
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Re: Isolator or separator?

Quote: Originally Posted by timandmikki View Post
Thanks Todd, which isolator do you use? Also is the stock charging system strong enough for two batteries?
no particular brand and no the charging system is not, I recommend charging the secondary battery at home and realize it will die most likely during hard use but at least you can crank it up and go home if you wired it the way I mentioned.

I think I bought my isolator at jc whitney or summit racing

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Old January 7th, 2013, 01:56 PM
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Re: Isolator or separator?

Quote: Originally Posted by Hunterworks View Post
Quote: Originally Posted by timandmikki View Post
Thanks Todd, which isolator do you use? Also is the stock charging system strong enough for two batteries?
no particular brand and no the charging system is not, I recommend charging the secondary battery at home and realize it will die most likely during hard use but at least you can crank it up and go home if you wired it the way I mentioned.

I think I bought my isolator at jc whitney or summit racing

Todd
Alot of people say the stock charging system isnt sufficient. Sorry to dissagree but I have been using mine for nearly two years and rarely do I ever have insufficient battery power to do anything I want. I run 2 stock polaris xp batteries now. Previously i ran 1 polaris stock S battery and my xp battery was my secondary battery. (I used the xp battery as it was given to me so I tought I would give it a try) . Only time I have ever ran low on power was a night at Waynoka when we ran till like 3 am in the dunes with everything on and stereo blasting which seems to eat the most power. I run a 30" TQS Lightbar, Stereo system which has a JVC headunit, 400watt amp and 4 speakers, 2 lighted whips and some interior LED's ,sometimes some strobe lights. Usually when we stop in the dunes we will run the whips,interior led lights and stereo for awhile . I can usually run about an hour off of the secondary battery before voltage drops below where the amp cus off. Depending on how high I have it cranked up. If its really cranked maybe 3045 minutes. Whenever that happens I just start up for awhile or go back to riding and it doesn't take very long to recharge the secondary battery. I almost never use a battery charger to recharge anything. I can tell though that my secondary battery after nearly two seasons of use is starting to run down quicker than when it was new. I would think the only way your going to need more power is if you have heated seats or some other accessory that really usues alot of power. not sure what battery I will use to replace my secondary batter with ones this one gives up but it has worked well for me so far. As far as the isolator goes I got mine off of ebay for 40 bucks shipped and so far so good.
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Old January 7th, 2013, 02:00 PM
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Re: Isolator or separator?

Which Isolator you using Magic Man?
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  #9  
Old January 7th, 2013, 02:22 PM
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Re: Isolator or separator?

subscribed....
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Old January 7th, 2013, 02:49 PM
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Re: Isolator or separator?

Ok guys, was gonna start another thread, but figured I would ask you guys first...Don't want to burn up my ride. I haven't added another battery yet, but plan on it soon. I am getting ready to add a winch, for snow plowing, a radio, no amp right now, and maybe some interior lights, just small led strips. I want to put my radio on a switch so I can run it with the rzr off., no amp at this time. I also want to put a switch on my winch, so someone can't just walk up and operate it. With this set up, am I correct to hook the "keyed" wire to the switch I want to use to power them on and off? And how many amp fuse to I hook those switches to in the fuse box? I am also adding a fuse box with a ground block in the fuse box. Thanks for any help, you guys have been great.
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Old January 7th, 2013, 05:35 PM
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Re: Isolator or separator?

Thats how I have mine pretty much. I have my secondary items like radio,whips interior lighting,gps and strobes wired to a fuseblock that has a switch to turn them on without the key being on. The lightbar,winch and backup lights all are wired to another fuseblock that is powered when the key is turned on. so basically anything that draws alot of power and really doesnt need to be on without the engine running and charging system operating is wired to the key on fuseblock.
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  #12  
Old January 7th, 2013, 05:39 PM
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Re: Isolator or separator?

Ok, like the radio and winch have hot wires that are normally connected to the battery, and another wire that goes to a keyed source. So I would wire the hot wire to my fuse block which is hot, and the keyed wire to my switch, which would be hooked to another fuse for power?
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  #13  
Old January 7th, 2013, 05:49 PM
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My understanding of the difference

Isolator

A battery isolator charges multiple batteries equally, making sure the charging is distributed equally as needed. The isolator allows for more than one battery to charge from the same source, with a diode. The diode creates a one-way energy flow between batteries.

Separator

A battery separator uses a solenoid to prioritize charging. The separator senses the need for additional power from the additional battery. It will pull power from the second battery only if your charging to the first battery can't keep up with the draw. The separator also allows recharging to the second source after the main source becomes fully charged.


The difference between the two is with current flow. The isolator works with a diode system that allows one-direction flow. The separator has a solenoid function that can choose which battery to pull power from.
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Old January 7th, 2013, 06:00 PM
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Re: Isolator or separator?

I have a stock battery and an Odyssey auxillary, along with an isolator. I run my winch AND all my accessories off of the Odyssey ONLY, saving my main battery just for starting. I also have my isolator switched, so if the main battery ever goes dead, I can use the auxillary to start the engine. Also, both battery's have marine-grade cut-off switches installed in their output cables, so I can shut-down both electrical circuits entirely. And yes, the charging system WILL keep both batteries charged, unless you have too many accessories drawing on the circuits. My two-bits.........

Cheers
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Old January 7th, 2013, 06:03 PM
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Re: Isolator or separator?

Uh....getting more confused. So really, either will work, but the separator charges one battery at a time while the isolator does both at the same time?
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