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Veteran
Posts: 117
Location: Toronto ontario canada | How do you connect the LQ batteries so that they get charged by the alternator while connected to the towing vehicle? |
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Extreme Veteran
Posts: 406
Location: Minneapolis, MN | Depends...but most late model trucks, that have the optional trailer towing package installed, will have a "pin" on the 7 way connector that is capable of this.
So you need to trace this wire into your trailer wiring harness and route that wire to the positive side of the battery. |
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Expert
Posts: 3802
  
Location: Rocky Mount N.C. | http://www.horsetrailerworld.com/home/wiring.asp My hot wire from the truck is wired directly to the trailer battery through the trailer plug.... use a test light/volt meter to trace out your wiring. Use the link above to help sort out how your vehicle is wired. On the GM trucks, there's a "big" 40 amp fuse underneath the hood on the drivers side inside the fuse box/block on the left fender well. Fuse has to be in place for the "hot lead" inside the truck trailer plug to be energized. Plug is hot all the time. Truck's ignition switch does not have to be on to energize/charge trailer battery, it is continously drawing off the truck battery as long as the trailer cord is plugged into the truck. This is for 2001 and later GM.... Not sure about Ford or Dodge.... |
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Veteran
Posts: 117
Location: Toronto ontario canada | Gary , is it possible for the batteries to charge if the ignition switch is not turned on ? |
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Expert
Posts: 2958
Location: North Carolina | Originally written by sidelock on 2009-09-17 7:53 AM
Gary , is it possible for the batteries to charge if the ignition switch is not turned on ? NO... unless the truck has been "Hot" wired by the crooks as they drive away with your rig. Seriously, the engine has to be running to create charging voltage. Otherwise you're just getting power from the truck battery. |
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Veteran
Posts: 117
Location: Toronto ontario canada | That is what I thought but he wrote " truck's ignition switch does not have to be on to energize/charge battries".
Edited by sidelock 2009-09-17 2:45 PM
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Elite Veteran
Posts: 720
| On the newer Fords ('99 & up) the "batt" or "Acc" (same circuit, two common names) circuit carries a relay, and dies when the key is off. The GM stays hot full time. I believe that's what was being referred to earlier. |
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Expert
Posts: 3802
Location: Rocky Mount N.C. | Originally written by horsey1 on 2009-09-17 5:39 PM
On the newer Fords ('99 & up) the "batt" or "Acc" (same circuit, two common names) circuit carries a relay, and dies when the key is off. The GM stays hot full time. I believe that's what was being referred to earlier. That is correct. It's hard to tell someone how something works when we don't know what make and model vehicle one has.... I.E. GM, FoMoCo, Chrysler, Toyota, etc...
Edited by retento 2009-09-17 5:08 PM
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DIY battery wiring ???
