Can AGM batteries be charged through the 7 way plug for winter?

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  VictoriaP Member Posts: 1,492

  November 2021

  Maybe I’m misunderstanding something, but if you’re running an extension cord to the camper shed anyway, why not just use an 15 amp adapter and your 30 amp cord to charge the trailer batteries? What advantage is there to using the 7 pin?

  2019 320s BD Lite, white with blue (“Haven”)
  2015 Subaru Outback 3.6r (unsafe 200lb tongue weight limit until 2020 models)
  2020 Subaru Outback XT
  Pacific NW

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  BrianZ Member Posts: 1,763

  November 2021 edited November 2021

  Even without the 15 amp adapter, why would you not want to connect a charger directly to the battery?  We do what @VictoriaP suggests, and we use a 30 amp extension cord in addition to the regular 30A cord, plus the adapter at the household outdoor outlet.

  -Brian in Chester, Virginia
  TV: 2005 Toyota Sienna LE (3.3L V6)
  RV: 2018 T@B 320S, >100 mods 

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  SgtYork Member Posts: 31

  November 2021

  Thanks for the reply. Cord is over 50ft long. And everytime I tried to connect the TAB 400, TAG, or Mini Lite campers to the outlet it blows a house fuse. But I can run battery charger with no problems.

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  rfuss928 Member Posts: 923

  November 2021

  YES  I made this adapter for easy connection of any charger source to the trailer 7-pin pigtail.
  
  
  

  

  
  

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  SgtYork Member Posts: 31

  November 2021 edited November 2021

  Thanks rfuss928. Do you have the pin outs that I need to connect too?
  
  

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  rfuss928 Member Posts: 923

  November 2021

  
  

  

  
  

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  SgtYork Member Posts: 31

  November 2021

  Thank you rfuss928!!!
  
  

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  SgtYork Member Posts: 31

  November 2021

  rfuss928 said:

  YES  I made this adapter for easy connection of any charger source to the trailer 7-pin pigtail.
  
  
  

  
  rfuss928  What battery charger and and voltager do you use. I have 2 6volt agm inline batteries. So can I put a 12volt agm charger to the 7 way? Thanks, Earl
  

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  Denny16 Member Posts: 5,445

  November 2021

  Yes, yes you can use any 12 VDC charger designed for AGM battereis.  Most new chargers have a switch to set them to AGM or Flooded (lead acid) batteries.
   Cheers 
  
  

  2018 TaB400 Custom Boondock,  Jeep Gladiator truck, Northern California Coast.

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  rfuss928 Member Posts: 923

  November 2021

  Denny16 said:

  Yes, yes you can use any 12 VDC charger designed for AGM battereis.  Most new chargers have a switch to set them to AGM or Flooded (lead acid) batteries.
   Cheers 
  
  

  Yup, what Denny16 said.  I also use it for my remote solar panel input when needed.  

  

  
  

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  SgtYork Member Posts: 31

  November 2021

  Thanks guys!!
  
  

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