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yes. this unit comes with a built-in rechargeable battery. this battery can be charged by the solar panel and AC adaptor. if the battery is out, the solar panel can supply the unit to work and charge the built-in battery as well.
Sorry, there was a problem. Please try again later.Yes it is!
Sorry, there was a problem. Please try again later.Yes they are!
Sorry, there was a problem. Please try again later.Yes
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