12 volt cooler and Zamp charging port.

Has anyone done a mod to use the Zamp charging port for a 12 volt cooler? I think I read somewhere that they reverse the polarity but if you had the proper polarity to the cooler would it work or is it set up to only charge the battery? I need just a little more space for the Christmas  holiday and using that port would make it easy for travel.
2017 Tab Max S (Silver/Black) 2013 Ford Edge 

Comments

  • Tabaz Tabaz Member Posts: 2,367
    The Zamp connector on the side of the propane tub is wired directly to the battery.  I guess it could be used to run a 12V appliance, but I'm no electrician.  Amazon sells a reverse polarity pigtail (I recall ChanW posting the exact model #).  I bought one and use it so I can plug my BatteryTender into the Zamp port.
    2016 Outback 320
    2024 Ford F150 Supercrew short bed.
  • VernaVerna Member Posts: 6,878
    I have an additional Zamp connector on the side of my tub that I use for my ARB fridge/freezer. Since I put the plug on the ARB wiring, I wired it for safety, just as the Zamp is wired--positive to the covered pin and negative to the exposed pin. I attached the wiring to the battery to match. 

    Zamp wiring is not is not reversed--it is wired so the positive side is not on the exposed metal side (fewer blown fuses). 
    Verna, Columbus, IN
    2021 T@B 320S  Boondock “The T@B”
    Towed by a white 2019 Ford F-150 4x4 Supercab, 3.5L V6 Ecoboost “The Truck”
  • NomadNomad Member Posts: 7,209
    You can get a reverse polarity Zamp type at most Walmarts - Trolling motor accessories/electronics.
  • VegascacherVegascacher Member Posts: 27
    Thanks for the information. Maybe I'll wire a 12 volt receptacle directly to the battery. I don't want to blow anything up on my maiden voyage.
    2017 Tab Max S (Silver/Black) 2013 Ford Edge 
  • VernaVerna Member Posts: 6,878
    As long as you have an in-line fuse, nothing will go wrong...if the fuse blows, it's wired backwards. 
    Verna, Columbus, IN
    2021 T@B 320S  Boondock “The T@B”
    Towed by a white 2019 Ford F-150 4x4 Supercab, 3.5L V6 Ecoboost “The Truck”
  • ScottGScottG Administrator Posts: 5,557
    Thanks for the information. Maybe I'll wire a 12 volt receptacle directly to the battery. I don't want to blow anything up on my maiden voyage.
    The Zamp port is a 12V receptacle wired directly to the battery. Just follow Verna's advice regarding polarity and fuses and it will work fine.
    2015 T@B S

  • VegascacherVegascacher Member Posts: 27
    Awesome thanks. Just waiting for my wiring (ordered from Amazon). I need to attach a 12 volt receptacle to a pigtail. The cooler plugs into a cigarette lighter type receptacle. I work during the week so this will be a nighttime project on Wednesday or Thursday. I'm running out of time but ill get it done. 
    2017 Tab Max S (Silver/Black) 2013 Ford Edge 
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