Alternator / battery wireing question

[dante81_98]

Hello,

I am putting my battery back in the bed of my truck for clearance issues. I plan on running a dedicated alternator lead to the battery, but have a few questions.

1. The distance this wire will have to go is about 20 ft. The alternator itself is a high output unit putting out approx. 220 amps. Should I run a 0 gauge for the alt lead or should I do 4 gauge?

2. I plan of fusing the wire with some high amp ANL fuses, but where should they go? Should it be closer to the alternator or closer to the battery?

Also, I am looking to do a "remote battery post" using this part.

https://www.stellmar.com/content/electromech/PDP/html/770Series/770_1_Series.php

That way I can run a 0 gauge wire from the battery to this somewhere under the truck and run the starter, fans, fuse box and stereo from there instead of running all those wires to the battey. This will keep the amount of cables comming into the bed to a minimum and still get the power where it needs to go. Does that sound like a decent idea? Would there be anything wrong with doing it this way?

Thanks,
Chad

[dante81_98]

I just found a table that details the wire gauges.

http://www.powerstream.com/Wire_Size.htm

That site says that for the 220 amp power transmission I should use 2/0 or 4/0 wire. At least for the alternator. Does that sound right?

Thanks,
Chad

[99sleeper]

i would say 0 just to be safe and get the most out of the h/o alt. Also you would want to put the fuse close to the alt

[Exalted512]

def. use 1/0, if not 2/0(RF makes some, but a better bet would be a welding store)

You would need to fuse the power wire within 18" of your alternator AND your battery. Doing just one could run the risk of fire
-Cody

[dante81_98]

Cool, well, I will get some 2/0 welding wire for my alternator and the remote battery posts as well as a ground directly to the frame.
Thanks,
Chad

[joakwin]

Hello,

I am putting my battery back in the bed of my truck for clearance issues. I plan on running a dedicated alternator lead to the battery, but have a few questions.

1. The distance this wire will have to go is about 20 ft. The alternator itself is a high output unit putting out approx. 220 amps. Should I run a 0 gauge for the alt lead or should I do 4 gauge?

2. I plan of fusing the wire with some high amp ANL fuses, but where should they go? Should it be closer to the alternator or closer to the battery?

Also, I am looking to do a "remote battery post" using this part.

https://www.stellmar.com/content/electromech/PDP/html/770Series/770_1_Series.php

That way I can run a 0 gauge wire from the battery to this somewhere under the truck and run the starter, fans, fuse box and stereo from there instead of running all those wires to the battey. This will keep the amount of cables comming into the bed to a minimum and still get the power where it needs to go. Does that sound like a decent idea? Would there be anything wrong with doing it this way?

Thanks,
Chad


those power post things look sweet, im gonna order me some for my truck

thanks for the link

and ur plan sounds good

[dante81_98]

those power post things look sweet, im gonna order me some for my truck

thanks for the link

and ur plan sounds good

I have some other stuff from them as well and am real pleased with it. I am glad I could be of assistance.

Later
Chad