How to Assemble Sigrow Air Pro Plus

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Make a loop of the excess fan wire.
Place a small piece of plastic from a filter on the negative side of the battery holder. The negative side is marked with (-) and is on the side towards the solar panels.
Insert the battery with the correct orientation into the battery holder.
Pay attention that the plus (+) and minus (-) on the battery and on the PCB are on the same side.

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