Quote:
Originally Posted by Lrc47
We will be boondocking and need to charge our phones. Can I use the USB ports in my 2021 Cougar half ton 5th wheel 30 rls? I have a portable solar panel to keep the battery recharged, but not sure if the USB ports run off the battery or shore power. Thanks for any assistance.
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USB ports are 5VDC. It makes infinitely more sense to convert 12VDC to 5VDC instead of converter 120VAC to 5VDC.
You can always test it before you venture forth.
How big is the solar panel?
How does it connect to the battery?
Does it have a built-in charger controller?
You generally never want to attached a solar panel directly to a battery unless it is specifically designed to do so.