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#1 (permalink) Old 12-11-2012, 06:18 PM
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dual battery kit, ironman

im considering this Ironman 140 Amp Dual Battery Kit DB001, does anybody have any good or bad reviews?
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#2 (permalink) Old 12-11-2012, 07:02 PM
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Re: dual battery kit, ironman

Jacque just got one, but has not installed it yet.
I can say we have never had one returned.
Sorry, I don't own one so I can't help with a review.

Last edited by WILSON; 12-12-2012 at 07:59 AM.
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#3 (permalink) Old 12-11-2012, 07:12 PM
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Re: dual battery kit, ironman

make sure you read through this thread -

What you need to know about the FJ's Electrical System

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#4 (permalink) Old 12-11-2012, 09:14 PM
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Re: dual battery kit, ironman

Quote:
Gwagg previously said: View Post
make sure you read through this thread -

What you need to know about the FJ's Electrical System
i have read through that thread before, good info, im an electrical and electronics specialist for the diesel truck and heavy equipment industry, i have worked with many multiple battery systems, i want to isolate my lights and extra electrical equipment from the ignition battery. i have an optima yellow top in my racecar that im gonna transfer over to my fj as the second battery. i just want to be sure i have a proper isolation system.
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#5 (permalink) Old 12-11-2012, 09:29 PM
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Re: dual battery kit, ironman

i would upgrade the alt also

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#6 (permalink) Old 12-11-2012, 09:33 PM
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Re: dual battery kit, ironman

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i would upgrade the alt also
ill have it rebuilt for higher output.
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#7 (permalink) Old 12-11-2012, 10:44 PM
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Re: dual battery kit, ironman

As long as you stay within the amperage range your fine. Realize though, that if you use a winch on the main battery you won't gain any reserve capacity for the winch with that setup. Or any other high current power draw device for that matter. As soon as the voltage drops down below 12.8 volts you effectively have one battery to work off for a winch.

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#8 (permalink) Old 12-12-2012, 12:47 PM
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Re: dual battery kit, ironman

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Greggry previously said: View Post
As long as you stay within the amperage range your fine. Realize though, that if you use a winch on the main battery you won't gain any reserve capacity for the winch with that setup. Or any other high current power draw device for that matter. As soon as the voltage drops down below 12.8 volts you effectively have one battery to work off for a winch.
i want to run a winch from the secondary, i dont want anything on the primary battery except oem.
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#9 (permalink) Old 12-12-2012, 01:33 PM
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Re: dual battery kit, ironman

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jabartram previously said: View Post
i want to run a winch from the secondary, i dont want anything on the primary battery except oem.


Me Too - I'd be interested in seeing how you do this...


I am considering the The Dirty Parts Dual Battery Kit
or the Ironman 275 Amp Dual Battery Kit DB002

which one is better?

I want to have an adequet amperage on the solenoid right?
and probabaly need to get a higher amp alternator?

Thanks


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#10 (permalink) Old 12-13-2012, 10:54 PM
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Re: dual battery kit, ironman

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jabartram previously said: View Post
i want to run a winch from the secondary, i dont want anything on the primary battery except oem.
Well for doing that your better off with a different type of isolator. The main reason to run dual batteries is to gain more reserve capacity, and the ability to split the batteries from one another so if one drains down the other one is ok. That isolator won't allow you to combine the batteries during winching for more reserve capacity, and rated at 140 amps I would question what would happen to it when you were to run a winch on it. A device like that is not designed to transfer a large amount of power through it, which means under winching I would be worried about it failing.

Get a device like this Single Rectifier Isolator | Battery Isolators | Perfect Switch, LLC
It does the same isolation the one your looking at does, however it adds the ability to combine batteries during winching so you have more reserve capacity. And it designed/rated for much more power handling.

If you stick with the one from ironman you should put the winch on the primary battery. That isolator is designed to really give you a second isolated starting battery, and possibly run a fridge/other devices.

Edit: Also with that device wired in between batteries (the likely way it would be wired in) it would effectively cut the alt power to the winch. The voltage will drop lower then 12.8 volt with the winch pulling, which would cause the switch inside of that isolator to disconnect that battery from the charging system. That means your left with a 12.5 volt battery to provide all the power with 0 power from the alt. it won't take very long before that second battery is toast. That device is best left for low amperage devices like fridges and trucks without winches.

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Last edited by Greggry; 12-14-2012 at 01:21 AM.
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