Egretech Sonic 100W Portable Solar Panel

1.Do solar panels need to be cleaned regularly?

Yes. After a solar panel is used outdoors for a long time, a large amount of dust and foreign matter will accumulate on its surface, blocking light to a certain extent and reducing power generation. Regular cleaning helps keep solar panel surfaces clean, free of obstructions, and producing higher power output. However, when cleaning, be sure to wipe the surface with soft materials to prevent hard materials from scratching the surface of the solar panels and affecting the service life of the solar panels.

2.What is the operating temperature range and usage precautions for solar panels?

Solar panels have an operating temperature range of -20°C to 60°C (-4°F to 140°F). Please read the instructions carefully before using the solar panel, and try to avoid frequent folding and opening during use to avoid damaging the battery cells. The panel is made of special composite material and is lightweight. However, solar panels are made of monocrystalline silicon wafers, and although they are flexible, they should not be dropped to the ground, stepped on, or hit by foreign objects during installation and use. Do not sit on the surface of the module, and do not bend the module excessively to avoid cracking of the single crystal silicon wafer and affecting its use. Please note that man-made damage is not covered by the free warranty.

3.Why do the electronic device charge slowly?

1.Low ambient illumination: in low illumination environment such as rainy days, theconversion efficiency of solar panel will be affected. 2. Dirty surface of solar panel: please clean and continue to use the panel surface to avoidstains blocking the solar panel from receiving sunlight. 3. Overheating of energy storage equipment: please do not expose energy storage equipmentto sunlight or overheated environment for a long time. Excessive temperature may trigger.

4.If it is cloudy, can the solar panel still work?

Even if the illumination is low, the solar panel can still generate electricity, however, the powerwill decrease in comparison with the weather condition with strong illumination; if theconnected equipment can support PPT algorithm, even if the illumination is low, the solarpanel can maintain a relatively stable high voltage level to generate electricity, thus improvingthe impact oflow illumination enyironment.

5.What is the operating temperature range of Egretech solar panels?

The normal operating temperature range of solar panels is -20℃ to 60℃.