Yufai: How to maintain solar power street lamp in winter

Winter is a cold day of the year and a season with little sunshine. There are many cases of solar power street lamp quality problems in winter. For example, the most common problem is insufficient light at night, and in winter, the sun is not as good as summer, solar panels do not generate enough power, the battery discharge in winter is only 60% of summer, the temperature in winter is not enough, the battery power is only one day 2 hours or 3 hours.

1. The battery is buried too shallow, the weather is cold in winter, the battery is "frozen" due to freezing, and the discharge is insufficient. Generally in cold areas, the battery should be buried at least 1 meter deep, and 20 cm of sand should be laid on the bottom to facilitate the dissipation of water and extend the service life of the battery.

2. Solar panels cannot generate enough power, and the power generated every day is not enough to fill the battery. In winter, the sun moves to the south and the sun's altitude angle decreases, resulting in insufficient light. In some places, solar panels are blocked by high objects such as houses and trees, or partially blocked by light, resulting in insufficient power generation.

3. The solar panels have not been cleaned for a long time, and there is too much dust, which affects power generation. In some places, due to frequent snowfall, the snow-covered solar panels cause insufficient power generation. Therefore, clean up the dust and snow on the solar panels every two months.

4. The battery has a certain service life. As the number of times of use increases, the charging and discharging frequency of the battery gradually decreases. Therefore, it is normal that the light-emitting diode street lamp will be used for more than 3 years of lighting time, which is a normal phenomenon. The replacement of the energy storage battery can solve this problem.

5. The controller cannot work at low temperatures. The controller is located in the pole, and the ambient temperature is too high or too low, which will affect the normal use of the controller.

Author: Yufai
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