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Tow Ready Battery Boxes TR118665 Review

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Review of Tow Ready Accessories and Parts TR118665

Today we're going to review part number TR118665. This is the Tow Ready Battery Isolation Solenoid. Now this battery isolation solenoid will shut off your 12-volt feed from your vehicles battery to your 12-volt accessories on your trailer when your ignition is turned off. This will allow you to use battery powered electrical components on your trailer without draining your vehicles battery. Now, when you do install this, the mounting bracket right here is the ground. This does need to ground to a good clean metal surface. This solenoid is rated for 80amps.

The wire we recommend when attaching wires to this is usually 10 to 12 gauge size. Now, when you do install this, basically like I mentioned, this has to be mounted into a good clean metal surface to get to ground. Right over here, this would be your voltage that would come in from your battery. Over here would be your voltage that's going out to your trailer connector. This connection right here to the ignition switch power source. That's should do it for the review on part number TR118665.

The Tow Ready Battery Isolation Solenoid. .



Will the tow s ready solenold cause no power at switch

Etrailer Expert

Chris R.


I'm not quite sure what you mean. The solenoid is going to cut off power to any accessories you have wired to the battery when the vehicle's ignition is turned off.

Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Chris R
Video Edited:
Chris R

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