The components of 20W solar street light is mainly composed of solar panels, batteries, light sources, etc. As the solar street light is installed outdoors, the maintenance is particularly important, especially the battery.

The maintenance of 20W solar street light battery is mainly two prevention and one control

Two precautions: prevent over-discharge and overfilling

Over-discharge: the deeper the over-discharge depth is, the shorter the cycle times of charge and discharge, that is, the shorter the service life. Because the over-discharge will increase the internal pressure of the battery, which will cause the reversibility of the positive and negative active substances to be damaged, the electrolyte will decompose, the negative lithium will deposit, and the resistance will increase. Even if the charge can only be partially recovered, its capacity will decline, and even it will be directly discarded.

Overcharge: overcharge means that the charging current of the battery is greater than the acceptable currency of the battery. This overcharge quantity will be converted into heat and make the temperature of the battery rise. For a long time, it is easy to cause "out of control heat", which will sharply reduce and deform the capacity of the battery, and there is a hidden danger of explosion and combustion. Therefore, it is necessary to prevent overcharge of the battery and provide the charging voltage value in strict accordance with the regulations Overcharge protection.

One control refers to the control of the ambient temperature of the battery.

Whether the ambient temperature is too high or too low, it will also affect the capacity of the battery and shorten its service life. Firstly, the best choice for the battery is a lithium battery, not a gel battery. The performance of lithium battery, whether in cold resistance or heat resistance, should be more excellent.

If the battery is buried in the ground, it should be buried deeper, at least 40 cm. On the one hand, it can reduce the impact of temperature, on the other hand, it can prevent being flooded, and avoid the impact of water on the battery.