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Old 08-24-2007, 12:21 PM   #1
BB72CHEVKT
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what is this?

Connects to alternator and then splices into another wire off firewall and last wire runs towards rear of truck. I am thinking someting to do with the trailer brakes.
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Old 08-24-2007, 12:42 PM   #2
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Re: what is this?

Looks like a battery isolator.
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Old 08-24-2007, 12:44 PM   #3
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Re: what is this?

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Old 08-24-2007, 12:46 PM   #4
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Re: what is this?

Quote:
Originally Posted by DoobieBrother View Post
Looks like a battery isolator.
Help me out. What does an isolator do and what is the purpose? I think they may have used this truck as a capmer of to pull a camper. Thanks
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Old 08-24-2007, 12:54 PM   #5
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Re: what is this?

Quote:
Originally Posted by BB72CHEVKT View Post
Help me out. What does an isolator do and what is the purpose? I think they may have used this truck as a capmer of to pull a camper. Thanks
A battery isolator will let you completely discharge one battery without discharging the starting battery. For example, If you have a winch, connect it to the aux battery and you can run the winch till the battery is flat dead but you can still start up the truck and drive away.

http://www.bcae1.com/battiso.htm
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Old 08-24-2007, 12:54 PM   #6
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Re: what is this?

That would make sense if they had a camper. Basically, it's a huge diode. It lets power flow only one way. It will allow the battery in the camper to be charged from the vehicle, but will not let the camper battery draw from the vehicle. The camper battery is being charged while the vehicle is running, but when the vehicle is off, the camper cannot draw from the vehicle battery.

Clear as mud???
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Old 08-24-2007, 01:23 PM   #7
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Re: what is this?

Do you think this is where it went to the camper?
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Old 08-24-2007, 01:24 PM   #8
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Re: what is this?

Do you think this is where it tapped into the camper?
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Old 08-24-2007, 01:30 PM   #9
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Re: what is this?

I would say yes, most likely.
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Old 08-24-2007, 04:05 PM   #10
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Re: what is this?

Either that or you've got a snake stuck in there.
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Old 08-24-2007, 08:28 PM   #11
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Re: what is this?

Quote:
Originally Posted by FLEET72 View Post
you can run the winch till the battery is flat dead but you can still start up the truck and drive away.

http://www.bcae1.com/battiso.htm
that is if you still aren't stuck.
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