7 pin plug question

[Colo_Native]

I have my new FW and was wondering when parked over night say in a Walmart lot with no power source do you leave the FW plugged into the truck and does it draw off the truck battery?

[RustyJC]

Arcamper wrote:
My new Ram keeps the plug hot all the time.

Every Ram (Dodge) I've owned since 1996 does. They do not use a battery isolation relay in stock configuration.

Rusty

[Arcamper]

My new Ram keeps the plug hot all the time.

[laknox]

tdst51 wrote:

tvman44 wrote:
Agreed Ford factory wired do not because of relay.

I wish mine did. We had to move out and away from the driveway and I left it hooked up for about 3 weeks, and when I went to move it back, guess what? Dead battery in my truck.

Any time you're stopped more than 1-2 days, you should unplug from the truck. Even with a battery disconnect on your trailer, you should still unplug.

Lyle

[tdsxt51]

tvman44 wrote:
Agreed Ford factory wired do not because of relay.

I wish mine did. We had to move out and away from the driveway and I left it hooked up for about 3 weeks, and when I went to move it back, guess what? Dead battery in my truck.

[Old-Biscuit]

MFL wrote:
Old Biscuit, on the newer Fords, the top (indent) is at the 3 o'clock position. So yes, you are correct, if the plug was installed like picture, the battery/charge would be at one o'clock.

The Fords have the 4-pin, and 7-pin, side by side, their reason for doing this. I actually like being plugged in with the door on the right, rather than the top.

Jerry

OK.....

Orientation makes a difference.

[MFL]

Old Biscuit, on the newer Fords, the top (indent) is at the 3 o'clock position. So yes, you are correct, if the plug was installed like picture, the battery/charge would be at one o'clock.

The Fords have the 4-pin, and 7-pin, side by side, their reason for doing this. I actually like being plugged in with the door on the right, rather than the top.

Jerry

[RustyJC]

Normally reference to pin positions is made relative to the plug keyway that's at the 12 o'clock position by definition irrespective of receptacle orientation.

Rusty

[Colo_Native]

Old-Biscuit wrote:

Colo Native wrote:

Old-Biscuit wrote:
Flip open 7 pin receptacle cover on truck and test for 12V at 1 O'clock blade.

Truck key off.........no 12V------no drain on battery



Even if there is 12V power with truck key off........overnight stop should NOT drain truck battery unless trailer battery is really low/bad

Boondocking-----YES unplug

I went and checked and mine is the 10 and 5 o'clock pins and there is no power when off. THANKS Everybody

That sure isn't trailer/rv standard truck receptacle wiring
10 (11)....S/B tail/running lights & 5 S/B .....brake controller output

Did you have to rewire your trailer cord plug to match truck receptacle?

It is a factory plug and it is turned 90 degrees

[Old-Biscuit]

Colo Native wrote:

Old-Biscuit wrote:
Flip open 7 pin receptacle cover on truck and test for 12V at 1 O'clock blade.

Truck key off.........no 12V------no drain on battery



Even if there is 12V power with truck key off........overnight stop should NOT drain truck battery unless trailer battery is really low/bad

Boondocking-----YES unplug

I went and checked and mine is the 10 and 5 o'clock pins and there is no power when off. THANKS Everybody

That sure isn't trailer/rv standard truck receptacle wiring
10 (11)....S/B tail/running lights & 5 S/B .....brake controller output

Did you have to rewire your trailer cord plug to match truck receptacle?

[Colo_Native]

Old-Biscuit wrote:
Flip open 7 pin receptacle cover on truck and test for 12V at 1 O'clock blade.

Truck key off.........no 12V------no drain on battery



Even if there is 12V power with truck key off........overnight stop should NOT drain truck battery unless trailer battery is really low/bad

Boondocking-----YES unplug

I went and checked and mine is the 10 and 5 o'clock pins and there is no power when off. THANKS Everybody

[Old-Biscuit]

Flip open 7 pin receptacle cover on truck and test for 12V at 1 O'clock blade.

Truck key off.........no 12V------no drain on battery



Even if there is 12V power with truck key off........overnight stop should NOT drain truck battery unless trailer battery is really low/bad

Boondocking-----YES unplug

[tvman44]

Agreed Ford factory wired do not because of relay.

[enblethen]

Most factory wired Ford connectors are powered through a relay that disconnects when the engine is hut off. No need to unplug!