Why does the solar lithium battery street light do not light up or not when installed

Why doesn't the solar lithium battery street light turn on? In the process of installation, the most feared thing is that there is no light during use, which greatly loses the image of the company and causes distrust of customers. Why does the lithium battery solar street light do not light up? There are several possible reasons as follows: 01 Wiring method If the solar energy does not turn on during the installation process, under normal circumstances, workers have reversed the LED positive and negative poles when wiring. Our current lithium battery only needs two output wires, one led another battery board. If the battery board is reversed, the led will not go out after a long time.　　02Capacity problem　　According to the national safety transportation law, lithium batteries are restricted products for transportation. According to relevant regulations, the battery capacity of solar lithium batteries is controlled below 30% from delivery to transportation, so the solar lithium batteries in the hands of customers are not fully charged. If it is not installed for a long time or if there is a long rainy day during installation, the solar street light will only consume the battery capacity of the factory, and it will directly cause a loss of electricity if it is not charged by solar energy.　　03Quality problem　　If none of the above occurs, but it still does not light up, then the product itself is really defective, and you can directly return to the manufacturer for inspection