Prevent battery drain of TV

Bclarke
Bclarke Member Posts: 110
in Battery/Electrical & Solar
Hello.. I have a 7 pin connector on my TV.  I would like to eliminate a battery drain from the camper when the vehicle is off.  I did test it and the 12V power is live at the connector with the TV off.  So... does this get resolved with the installation of an isolator?   Does the RV store do this or the car dealer?   I admit being clueless so appreciate any help.   Thank you! 

Comments

  • Sharon_is_SAM
    Sharon_is_SAM Member Posts: 10,035
    edited February 2021
    You need to install an isolation relay on your TV.  This will prevent battery drain from your TV battery.  Another option is to just disconnect the 7 pin from the TV.  Our Sienna charge line remains live when the ignition is off, so when we stop for lunch when on the road, we just disconnect the 7 pin.  We probably don’t even need to do that because our ARB sips power.  Just need to remember to reconnect.  
    Sharon / 2017 T@B CSS / 2015 Toyota Sienna Minivan / Westlake, Ohio
  • Bclarke
    Bclarke Member Posts: 110
    Thank you @Sharon_is_SAM ..  is this done by the car or the RV dealer?   (and thank you for removing my duplicate post! I just moved to my desktop to see if I could somehow but couldn't figure it out)  :-)
  • Sharon_is_SAM
    Sharon_is_SAM Member Posts: 10,035
    I think an aftermarket auto electronics installer might do it.  Not sure if an auto dealer would do it.  Anybody else know!
    Sharon / 2017 T@B CSS / 2015 Toyota Sienna Minivan / Westlake, Ohio
  • pthomas745
    pthomas745 Administrator, Moderator Posts: 4,605
    Why would you want to leave it plugged into the vehicle?
    2017 Outback
    Towed by 2014 Touareg TDi
  • Tampakayaker
    Tampakayaker Member Posts: 558
    I wired a toggle switch on my dash to cut off the power to the 7 pin when I stop.
    2006 RAM 1500 4 door, 2016 T@B 320 MAX S 
    Tampa FL
  • Bclarke
    Bclarke Member Posts: 110
    @pthomas745 it’s not that I want to it’s that I know I will forget At some point.  😳
  • pthomas745
    pthomas745 Administrator, Moderator Posts: 4,605
    @Bclarke A perfect answer! 
    2017 Outback
    Towed by 2014 Touareg TDi
  • AirBoss
    AirBoss Member Posts: 740
    Just unplug your TV...problem solved. 
    2020 T@B 400 "OTTO" (build date 08/19)
    Factory Victron Solar; Norcold 3-way fridge
    '04 Chevy Tahoe Z71 DinoKiller
    San Diego, CA
    www.airbossone.com
    https://fineartamerica.com/profiles/owen-ashurst/shop


  • 4ncar
    4ncar Member Posts: 1,072
    @Bclarke:  Either make it a point not to forget...OR the one time you do forget, will be your last and once you have recharged your TV battery, you'll never do it again! Thats what separates us from the apes...we learn from our mistakes(oh, and something about the thumbs...)!
    TV- '16 Chevy Colorado LT Crew Cab-DuraMax
    2018 320S Outback
  • Bclarke
    Bclarke Member Posts: 110
    edited February 2021
    Ok Ok ...   feeling pretty foolish here.   Ha!   I have figured out the thumb usage .. so I guess I will suck it up and learn how to do all of this the right way.  👍
  • m_lewis
    m_lewis Member Posts: 76
    Bclarke said:
    Ok Ok ...   feeling pretty foolish here.   Ha!   I have figured out the thumb usage .. so I guess I will suck it up and learn how to do all of this the right way.  👍
    You need not feel foolish. All apes have opposable thumbs. Most every lifeform learns from mistakes.  Some of us just learn faster. 
    2019 T@B 400 Boondock Lite, BMW X3
  • Bclarke
    Bclarke Member Posts: 110
    Our maiden voyage will be in a month... so just want to get it right.  We can’t wait!
  • Sharon_is_SAM
    Sharon_is_SAM Member Posts: 10,035
    @Bclarke - if you do disconnect, just clip a reminder to reconnect to the steering wheel.  Can’t avoid seeing that!
    Sharon / 2017 T@B CSS / 2015 Toyota Sienna Minivan / Westlake, Ohio
  • Mouseketab
    Mouseketab Member Posts: 1,262
    I would definitely take it to an auto repair shop and have the isolator installed. Automatic things make it easier on us and makes life more enjoyable. I would go to a local shop that specializes in automotive electronics. (Alternator replacement, etc.)
    Carol
    MOUSE-KE-T@B
    2007 Dutchmen T@B Clamshell #2741
    2022 nuCamp T@B 320 CS-S
    2021 F-150 502A Lariat SuperCrew, 3.5 EcoBoost 4x2
    Harvest, AL
  • lino
    lino Member Posts: 246
    I understand worrying about plugging back in
    I have no skills with electrical systems 

    Just use old fashion reminders
    Started with little sticky note then small noodle piece on steering wheel

    Helps with wheel lock since moving with it on scares me more  
  • ScottG
    ScottG Administrator Posts: 5,674
    Bclarke said:
    Ok Ok ...   feeling pretty foolish here.   Ha!   I have figured out the thumb usage .. so I guess I will suck it up and learn how to do all of this the right way.  👍
    You don't need to feel foolish. If you don't mind diddling with your trailer pigtail (and the associated reminders) every time you stop for sandwich or a pee break, then by all means that is a good solution for you. Personally, that would just aggravate me--I like your original idea of getting an isolation relay installed!
    2015 T@B Max S (320)
    2015 Nissan Frontier SV V6 4x4

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