First, when users use electricity for a long time and the lights do not turn on, it is probably because more dust or snow has accumulated on the solar panels, reducing the photovoltaic conversion rate and leads to insufficient charging. Therefore, users should check whether the battery board is damaged from time to time.
2. Check whether the connections and ground wires in the solar panel junction box are in good contact and whether there are any abnormalities.
3. Check if the solar panel bracket is loose or broken.
Four. Check if there is any obstruction on the surface of the solar panel.
5. Clean dust, bird droppings, etc. on solar panels in a timely manner.
6. In windy and snowy weather, clean the battery panel in time to check whether the seal is correct.
7. Managerer, analyze, resolve and record detected problems in a timely manner.