> Here is what I did 10+ years ago...
>
> Use 12V cigarette lighter sockets. They are pretty much universal.
> Connect them to the house battery. Dont forget to fuse them properly.
> Usually 10Amps for the cheap outlets. 20Amps for the better quality
> ones. Look at the ratings to decide what fuse and wire gauge that you
> will need. Be sure that the wiring is robust enough to support the
> current limited by the fuses. Use a separate ground wire that has the
> same wire gauge that you used for the +12v supply wire. Run the
> grounds back to the ground bus at the house batteries. Using the
> chassis for ground returns (for sensitive electronics or high current
> devices) is usually not a good idea.
>
> I installed two outlets under the driver seat base, two outlets under
> the passenger seat base, two outlets above the dining area, two
> outlets in the headboard in the bedroom and two outlets below the
> overhead cabinet at the foot of the bed.
>
> Over the years I have used them for cell phones, laptops, tablets,
> fans, electric blankets, inverters, TV's, coolers, air pumps and
> probably other stuff that I cant even remember.
>
> My point is to stick with something that is a universal standard and
> install it correctly. The USB standards change very quickly. Since I
> installed these outlets USB has evolved through USB1.0, USB2.0,
> USB3.0, USB3.1, USB3.2, USB-C, USB-4, Thunderbolt-1, Thunderbolt-2,
> Thunderbolt-3 and others. See
https://en.wikipedia.org/wiki/USB). All
> of these standards have low cost car chargers that will plug into a
> standard "12V cigarette lighter socket" outlet. And many other
> devices use this "12V cigarette lighter socket" outlet as a power source...
>
> Hope that helps...
>
>
> Dave
> Ann Arbor, MI.
> 73 Sequoia (26'/455/EbH/RwI/ThH/HEI/TBI/160°/3.42/100A/Q55G)
> 99 Gillig 36' Low Floor Bus (work in progress)
Hey Dave, If I had the interior cabinetry or floor/carpet etc out or in flux, I'd consider all sorts of installations and wiring changes, but my coach
is sort of finished as much as it's going to be for now, so I can't see how I can run the wiring required to approximate your installation without
much dis-assembly. Your fitments sound good, but for my simple needs, the USB connectors will be fine.
I have added one cigarette lighter style combination panel, this one:
https://www.amazon.ca/gp/product/B07JHH5YP4/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
so I will have that additional plug-ability near the entrance if I need to run something like an inflator.
As far as the USB standard changing, well of course it does but there again all I need these ports for are to charge my phone, e-reader, and to
run/charge my computer. I'm sure they'll be able to do that for a very long time and as I will NEVER own a piece of Apple technology I have zero need
for Thunderbolt ports.
BTW, I do have a Apple-style and newer Android phone USB charging cables on board in case a guest needs to use them.
So for now, the USB ports are going to be it and if indeed they do get deprecated I'll change them out at that time, along with every other device
that used to use them too, I suppose!
cheers
Larry
--
Larry - Victoria BC -
1977 Palm Beach 40,000 miles, PO said everything working but forgot the word NOT. New Atwood fridge, water heater & furnace. New SS exhaust system,
6000w Onan, Iota Converter, R134A A/C, New fuel lines & heat exchange hoses
