waveshare solar power management module for 6v~24v solar panel support solar panel/usb connection battery charging with mppt function and multi protection circuits waveshare <p><b>overview</b></p> <p>this solar power management module is designed for 6v~24v solar panel. it can charge the 3.7v li battery through solar panel or usb connection, and provides 5v/1a regulated output.</p> <p>the module features mppt (maximum power point tracking) function and multi protection circuits, therefore, it is able to keep working with high-efficiency, stability, and safety. it is suited for solar powered, low-power iot, and other environmental protection projects.</p> <p><b>specifications</b></p> <ul> <li>solar panel input voltage (solar in): 6v~24v</li> <li>micro usb input voltage (usb in): 5v</li> <li>pinheader / usb output (usb out): 5v 1a</li> <li>charging cutoff voltage: 4.2v±1%</li> <li>over discharging protection voltage: 2.9v±1%</li> <li>solar panel charge efficiency:: ~78%</li> <li>usb charge efficiency:: ~82%</li> <li>3.7v battery boost output efficiency: ~86%</li> <li>max quiescent current: <2ma</li> <li>operating temperature: -40°c~85°c</li> <li>dimension: 65.2mm × 56.2mm × 22.9mm</li> </ul> <p><b>package content</b></p> <ol> <li>solar power manager x1</li> </ol> <p><b>note: 1.the 14500 battery is not included.</b></p> <p><b>100% original from waveshare, technical support is provided ,please contact us !</b></p>