The console can be powered by battery or by the supplied AC cord.
It uses solar power and a back up lithium battery which need be replaced every few years.
Either or both
The home touch screen monitor that plugs in to an outlet, i think it has a battery backup like my old oregon scientific (do NOT buy that product, it constantly breaks---i learned my lesson after buying 4 of them, dumb me, right?). my nephew set up the entire system for me 2 years ago (if it has batteries, i have not yet replaced them).
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