Battery-powered USB and power outlets

Discussion in 'So, What Did You Do For Your Camper This Month ?' started by TheBlurb, Jun 26, 2021.

  1. TheBlurb

    TheBlurb Active Member

    Messages:
    174
    Likes Received:
    126
    Joined:
    Mar 28, 2019
    Installed a dual USB outlet and lighter power outlet (for my small inverter) with digital display. Wired to trailer tongue battery.
    upload_2021-6-25_21-47-10.jpeg
     
    Raycfe and xxxapache like this.
  2. jeepster04

    jeepster04 Active Member

    Messages:
    246
    Likes Received:
    160
    Joined:
    Nov 23, 2010
    Did the same about a year ago. Also added a shunt and meter at the same time.
     
  3. Anthony Hitchings

    Anthony Hitchings Well-Known Member

    Messages:
    3,052
    Likes Received:
    1,807
    Joined:
    Mar 2, 2019
    Location:
    Oakland, California
    FYI - the cheapie voltmeters are often incorrect,usually by .1-.3V; but my dashboard "Tymate" TPMS overstates my Jeep's voltage by 0.5V !!.
     
    TheBlurb likes this.
  4. tombiasi

    tombiasi Well-Known Member

    Messages:
    6,639
    Likes Received:
    2,209
    Joined:
    Sep 1, 2012
    Location:
    Northwestern New Jersey
    Why do you need an inverter?
     
  5. Anthony Hitchings

    Anthony Hitchings Well-Known Member

    Messages:
    3,052
    Likes Received:
    1,807
    Joined:
    Mar 2, 2019
    Location:
    Oakland, California
    added a dual-screw angle temporary floor restraint for travelling - for the portable kitchen drawer unit - which gets put on the floor when the roof is folded down. Anchor screw is 1/4"-20 tpi; with a Tee-nut on the underside of the floor. The T--nut is covered on the underside of the floor with metal foil tape - which seems to hold up well in use. Same deal as the yellow anchor that I did a year or more ago for the Engel compressor frig.

    This drawer unit sits on top of the built in cabinet by the door - it gives us three drawers of kitchen storage at working height, and effectively moves the (small) cabinet higher.
     

    Attached Files:

  6. TheBlurb

    TheBlurb Active Member

    Messages:
    174
    Likes Received:
    126
    Joined:
    Mar 28, 2019
    To charge laptop and misc. small devices.
     
  7. tombiasi

    tombiasi Well-Known Member

    Messages:
    6,639
    Likes Received:
    2,209
    Joined:
    Sep 1, 2012
    Location:
    Northwestern New Jersey
    If you can its better to charge directly from the battery.
     
  8. kitphantom

    kitphantom Well-Known Member Platinum Supporting Member

    Messages:
    13,218
    Likes Received:
    2,323
    Joined:
    Dec 26, 2009
    Location:
    Albuquerque, NM
    We just used a USB adapter in the 12v outlet to charge small electronics in our popup, which avoids the power loss of conversions through the inverter. [We now mostly use our free standing storage battery, a Goal Zero Yeti 150, because the 12v outlet in our TT is in about the most unhandy spot available, and we haven't figured out where we want another. There were USB outlets in the same spot, which we disconnected for a couple of reasons. We have a separate solar panel for the Yeti, because we had to up-size for the TT batteries, but kept the original set we had for the popup. It's probably not an arrangement I would have thought of doing, except we used what we already had. One advantage is that we can use the Yeti inside or out, to charge things or to run a fan or light.]
     
    TheBlurb likes this.
  9. Anthony Hitchings

    Anthony Hitchings Well-Known Member

    Messages:
    3,052
    Likes Received:
    1,807
    Joined:
    Mar 2, 2019
    Location:
    Oakland, California
    which is why I bought 12V powered chargers for my Laptop and my 35mm DSLR, but I still need a small inverter for my toothbrush charger and shaver
     
    TheBlurb likes this.
  10. TheBlurb

    TheBlurb Active Member

    Messages:
    174
    Likes Received:
    126
    Joined:
    Mar 28, 2019
    The inverter’s good. Can’t plug my laptop into battery without it.
     
    tombiasi likes this.
  11. tombiasi

    tombiasi Well-Known Member

    Messages:
    6,639
    Likes Received:
    2,209
    Joined:
    Sep 1, 2012
    Location:
    Northwestern New Jersey
    They make 12 volt chargers for laptops.
     
  12. WrkrBee

    WrkrBee Un-Supported Member

    Messages:
    6,538
    Likes Received:
    3,448
    Joined:
    May 23, 2018
    Location:
    South Carolina
    Pure sine wave or modified sine wave. Some electronics do not like modified.
     

Share This Page