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It looks like you have a Topsolar 20W Solar Panel Kit, which is a basic off-grid system typically used for maintaining or charging 12V batteries for RVs, boats, or small electronics m.media-amazon.com m.media-amazon.com +1 . Setting Up Your Kit Based on common instructions for this model, follow these steps to get started: Connect the Battery First: Use the provided cables with crocodile clips or ring terminals to connect your 12V battery to the charge controller m.media-amazon.com m.media-amazon.com +1 . Connect Red to Positive (+) and Black to Negative (-) m.media-amazon.com m.media-amazon.com . The controller should light up and display the battery's current voltage m.media-amazon.com m.media-amazon.com +1 . Select Battery Type: If your controller has an LCD screen or "BT" button, press it to choose the correct battery type (e.g., SLA/AGM, Gel, or Flooded) m.media-amazon.com m.media-amazon.com +1 . Connect the Solar Panel: Once the battery is recognized, connect the solar panel's cable to the controller's solar input m.media-amazon.com m.media-amazon.com +1 . Position the Panel: Place the solar panel in direct sunlight, ideally tilted to face the sun with no shade for maximum efficiency images.thdstatic.com images.thdstatic.com +1 . Key Features & Tips Charging Status: A blinking green light usually means it is actively charging, while a solid green light indicates the battery is full m.media-amazon.com m.media-amazon.com +1 . Dual USB Ports: Many of these kits include USB ports on the controller or the back of the panel to charge phones and other small devices directly Amazon.com Amazon.com +1 . Maintenance: This 20W panel is ideal for trickle charging to keep batteries from dying during storage