RAKwireless RAK19013 LiPo Solar Power Slot Module

The RAK19013 plugs directly into the dedicated power slot on compatible WisBlock base boards, such as the RAK19010. You must connect a compatible lithium-ion battery to its battery connector and a solar panel to its solar input terminals. Ensure the base board is powered off before insertion to avoid short circuits. The module will automatically manage power routing and battery charging once connected.

The absence of a USB port significantly enhances security for deployed IoT nodes by removing a physical interface for unauthorized firmware access or tampering. This design is critical for remote, unattended installations in industrial or agricultural settings where physical security cannot be guaranteed. It forces all firmware updates to occur wirelessly via the main MCU module's interfaces (like LoRaWAN or cellular), maintaining system integrity.

Your solar panel should have an open-circuit voltage (Voc) within the module's acceptable input range, typically between 5V and 12V is safe, and a current rating suitable for your battery capacity. The panel's peak power point voltage should be above the battery's charging voltage (around 4.2V for LiPo). Ensure you use a panel with a compatible connector or solder wires directly to the module's solar input pads, matching polarity. For best results in low-light conditions, choose a panel with high efficiency.