Forum Discussion

deltabravo's avatar
Jan 16, 2020

Adding USB and 12v outets to my 2 RVs

I have a lot of photo equipment and other things that need charged when I'm out adventuring.

In my truck camper I switched things around part way through the project and ended up with a 12v battery monitor up near the control panel, and 12v / USB down below.

Here's how I did it in the truck camper.


In my Nash 17k, I connected the 12v and USB to the stereo power lead, which is right next to where I mounted them.

12v and USB in my Nash 17k
  • Bobbo wrote:
    SJ-Chris wrote:
    Very easy solution:

    I installed these:
    https://www.amazon.com/gp/product/B07ZQJPJMB/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

    If you put them within ~6-10 inches from your under-cabinet dome lights (if you have those), you can tap off the dome light wiring.

    With the correct sized drill bit, it is a 10 minute job! I have a Majestic 28a and I added them to above the couch, above the dinette, and above the bed in the rear.

    Good luck!
    -Chris

    When it says "2.4 amps (one port)" does that mean that if you are using both ports at the same time you only get 1.2 amps per port? There are other brands that will do 2.4 amps on both ports at the same time. For example: https://www.amazon.com/Voltmeter-SunnyTrip-Waterproof-Replacement-Motorcycle/dp/B08FBY351F/ref=sr_1_9?dchild=1&keywords=12v+usb+outlet&qid=1607051503&sr=8-9


    I did install that type once before. That's when I learned there was a problem with them... They are TOO TALL/DEEP. They won't fit in the spacing in most cabinet undersides.

    To answer your question, yes I think the one I use is 2.4amp total. But my experience is that it actually produces a strong charge and hasn't been an issue. As a reference, I have a cigarette lighter charger on my dashboard that actually shows the amps as it is charging and most of the time it bounces around between 1-1.5amps when charging and it always seems to do a decent job.

    Good luck!
    Chris
  • Friendly heads up dont buy anything 2.4a.
    It's a little outdated here in 12/20.
  • That's still the limit if your device uses a micro usb charge/data port
    The 3amp 15w is the new type 'C' usb port
    Only my year old Lenovo tablet from last Dec 2019, uses a 'C' charge data port
    Every other device is micro usb cords
    I wouldn't worry about usb sockets not being the new 3 amp version, unless I had several devices with type C charge ports and used fast charge often
  • But, it would be nice if a 2 port device had 2.4 amps on both ports at the same time. Another thread had a "2.4 amp" device with 2 ports, but it was "2.4 amps (one port)." If using both ports, it was 1.2 amps per port The micro USB can do 2.4 amps.
  • Ive got a dual 2.4a output. Does the 9v fast charge using micro usb.
    If buying new i would just buy 3.0a. Cost the same from what i saw a month ago when i bought (2) of the dual 3.0a.

    I think the 2 pack was actually cheaper. Could go find it if anyone is interested. Was an amazon order.
  • I have a few of these in my trailer. Two 2.1A charge slots and best of all no LED.

    Link