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Can 7-Way Junction Box 277-000141 Be Used to Charge Trailer Battery  


i have an enclosed trailer that i installed a deep cycle battery in to power my alarm system and now want to add the epicord junction box to feed charging power from the pull rig to the battery. i have the tow ready battery isolator and the epicord 7 way ready to go but have three questions. 1. can the 12 volt ignition source for the isolator come from within the epicord junction box 2. are there any changes that i need to be aware of from the pull vehicle wiring to the junction box 2005 f150 photo attatched 3. which lead within the epicord junction box do i use to go to the isolator to charge the trailer battery while pulling want isolator in with the battery box on the trailer


Helpful Expert Reply:

If there happened to be a 12 volt keyed power source in the circuits of the # 277-000141 you could use it for the isolation solenoid # PK5231201. Essentially you would need to have the 12 volt circuit of the vehicle already be only active when the key is on. Which if that were the case you wouldn't need the solenoid realistically.

If the 12 volt circuit of your truck's 7-way is active all the time you would need to install the solenoid on that circuit and that would get the circuit active when needed.

The terminal with the black on the end of it would be the post that would normally get associated with the 12 volt power circuit so that would be the one to use.

expert reply by:
Jameson C
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