100 watt Solar decision
I'm planning on Boondocking for a few months, plan to run my phone, some lights and hopefully my refrigerator on a 100 watt solar panel charging the Travel Trailer Battery for a short time job. Aft...
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I wouldn't worry that much about the USB on the controller. First are you going to put the controller near your workplace? Chances are with the portable setup it would be in the front storage compartment, basically out of reach.
Easier to go with something like the Renogy kit, (Its comparable to the one I sent you, and arguably a better brand) and then install a usb port inside, where you need it. If you have a 12 volt outlet, this video shows a nice little replacement which keeps the 12 volt outlet available, and gives two USB ports. You tube
Or you can just tap into a 12 volt light fixture and do the same thing.
And the extra contacts are not for powering things off the controllers generally, You still have to have a battery installed for most uses.
Easier to go with something like the Renogy kit, (Its comparable to the one I sent you, and arguably a better brand) and then install a usb port inside, where you need it. If you have a 12 volt outlet, this video shows a nice little replacement which keeps the 12 volt outlet available, and gives two USB ports. You tube
Or you can just tap into a 12 volt light fixture and do the same thing.
And the extra contacts are not for powering things off the controllers generally, You still have to have a battery installed for most uses.
