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Old 05-05-2008
Tyler James's Avatar
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I am: Tyler Kenley
Join Date: May 2008
Location: Fort Irwin, Cali
Vehicle: 1994 ford ranger XL
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need help with an alternator

how many amps should i have for my altinator if im going to be running 6 lights.

anybody knows. please help
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Old 05-05-2008
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I am: Mike S.
Join Date: Oct 2007
Location: Stevenson, WA
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Go for a 200 if your looking for a high output.. that, or run a dual battery setup if you plan on running them without the truck running at all. make sure you absolutely upgrade the existing wiring to a high gauge, possibly a 2 if you want to make sure its heavy.. including the grounding cable.

Similar to this.. not sure if it will work for you or not, check the compatability under there

There you go =)

2001 4.0L SOHC, 5spd 4WD
Vehicle Modifications
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Old 05-05-2008
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I am: Marcus Dockery
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Location: Virginia Beach, VA
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it might benefit you alot more if you post your question in the right section
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Old 05-05-2008
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I am: Terrence L
Join Date: May 2006
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hear, hear !
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Old 05-08-2008
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I am: Mike Carr
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I'd go with a 200 amp alt. Welcome to RF.
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Old 05-09-2008
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I am: Maurice Jones Jr.
Join Date: Nov 2005
Location: Charlestown, IN
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Dual batteries will do nothing for drawing excess amps the alternator isn't making. One thing to remember about the high amp alternators is at idle they are only making about 140A.

You need to figure out what the amp draw is for your lights. Then add that to your stock alternator output and get the next largest alternator. With that many lights, I would go with a 200A alternator.
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Old 05-10-2008
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I am: Mark .
Join Date: Feb 2008
Location: California
Vehicle: 2001 Ford Ranger
Drive Type: 4x4
Engine: 4.0
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Welcome to R-F!
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Old 05-10-2008
Bentley's Avatar
I am: William Bentley
Join Date: Aug 2005
Location: Billings MT
Vehicle: 2003 Ford Ranger XLT
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welcome to the site.
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