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The generator shall not be directly connected to the battery. Rectification must be added to prevent backflow from burning the regulator board.

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100W Pedal Generator 12v 24v Hand Pedal Generator DIY Fitness Equipment Pedal Generator Dynamic Fitness Scooter Road Treadmill Hydropower (Color : A) : Patio, Lawn & Garden

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12v 24v Hand Pedal Generator DIY Dynamic Fitness Gear Pedal Generator 100W New