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What would it/could it hurt??

Mudbug1979

Mudbug1979

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If I ran a wire straight to the battery from the alternator? I realize that they make a 1 wire alternator, but I was just wondering what it could hurt if I just ran a wire directly to the battery and left the harness wire intact too. Just kicking around some stuff. Thanks.
 
Doesn`t a wire already run directly from the battery to the alternator? The charging wire?:confused:
 
harness

through the harness. I was talking about adding a wire to run directly to the battery in conjunction with the one that runs to the alternator through the harness. Did that make it any clearer?:rolleyes:
 
I realize that they make a 1 wire alternator, but I was just wondering what it could hurt if I just ran a wire directly to the battery and left the harness wire intact too
Click to expand...

Why?
 
I ran a 4 gauge wire directly between the alternator and battery when I swapped in a 140 amp CS144 several years ago...never had an issue. I was concerned that the small original wire going through the harness just wasn't sufficient, or at least would cause a bottleneck in the charging system.

If the alternator has the internal regulator you can't over-charge the battery.
 
think_07 said:
It maybe could cause overcharging?
Click to expand...

Nope. I have had my truck for about two months, and while camping a few weeks ago, my truck just died while warming it up in the morning. After looking for dead components, I realized that I had no continuity between the battery and alternator. I used jumper cables to get it home. I ended up using 8 ga. stereo cable, crimped and soldered eyelets on each end, heatshrinked the solder joints, and then covered the whole wire with 1/4" split loom tubing. I then routed it to look as factory as possible. It wasn't till a week after that, that I was able to get my hands on the factory wiring diagrams, and found out where the wire that was supposed to make this connection was neatly rolled/taped up and stuffed under my battery tray for some reason! I drove the truck for a long time like this, so I was basically charging through other circuits on the truck that eventually got overloaded (The fact that it was trying to re-charge the battery after 8 hours of playing music the day before is why I assumed it had just happened now).
 
I eliminated the factory charge wire totally.I put in a cs130,ran a 4g. super fine strand wire from the alternator to the 150a. circuit breaker to the battery. From the battery tothe starter with 2/0 welding cable and from the starter tothe junction block with 10g. I dont see any reason to have the 'bottle necked' wire configuration. I have yet to run this truck,but will soon and dont anticipate any probs.
-Lance

Gavin 2007 006.jpg

Gavin 2007 005.jpg
 
If you run it correctly it won't hurt anything. It might help in charging the battery. Depends on the wiring you have now.
 
I ran a 4ga wire from the alt to the battery for the charging wire. It has been that way for several years no prolems yet.

Harley
 
If you have an internal regulator you'll be fine. Just be sure to use a circuit breaker or a fuseable link in the line between the alt. and battery
 
One large wire already runs from the alternator to the battery . And one wire from the plug runs to the junction block , where one also runs to the starter .

Heres what I did to my engine electrical , deleted the starter wires except battery cable and solenoid , and ran direct from battery to junction block where the alternator goes to .

chargestart-1.jpg
 
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