Solar street lamp has been widely used because of its good energy-saving advantages. There are three kinds of solar batteries, which are important components of solar street lamps. They are lithium battery, lead-acid battery and colloidal battery. Among them, lithium battery is becoming more and more popular in the solar energy industry because of its service life higher than the two.
Advantages of using lithium battery for solar street lamp
Lithium batteries are safer
Lithium batteries are dry batteries. It is an energy storage battery with controllability and no pollution. It is more stable and safer than lead-acid battery.
Reasonable distribution of power consumption level
The solar street lamp lithium battery can also intelligently optimize the remaining capacity of the battery, day and night duration, weather conditions and other factors according to the needs of users, and reasonably allocate the power level. And realize the functions of light control, time control, storage and memory. It can ensure that the lights are on for at least ten consecutive rainy days.
Long life of lithium battery
Unlike the short life of lead-acid batteries that need to be replaced in two or three years, the service life of lithium batteries is generally greater than 10 years. In the solar street lamp system, the service life of LED light source can generally reach 10 years. The selection of lithium battery can perfectly match the system and avoid the cumbersome process of frequent battery replacement.
Small volume, light weight and easy transportation
Compared with the lithium energy storage system and lead-acid colloidal battery used in high-power solar street lamps, the weight is about one-third and the volume is about one-third. In this way, transportation is easier and the transportation cost naturally decreases.
Street lamps are easy to install
During the installation of traditional solar street lamps, a battery pit needs to be reserved, and the battery is put in and sealed with a buried box. The installation of lithium solar street lamps is much more convenient. The lithium battery can be directly installed on the bracket, and the suspension type or built-in type can be used.
Street lamps are easy to maintain
The lithium battery solar street lamp only needs to remove the battery from the lamp pole or battery panel during maintenance. The traditional solar street lamp needs to dig out the buried battery during maintenance. Compared with lithium solar street lamps, it is much more troublesome.
Precautions for the use of solar street lamp lithium battery
Temperature
The service life of anything is actually affected by temperature. This is the so-called working temperature. The working ambient temperature of lithium battery is between – 30 ℃ – 60 ℃. However, generally, the performance will be affected below 0 ℃.
Complete discharge
Due to current technical problems, lithium batteries cannot be completely discharged at will. Generally, less than 10% of the electricity will cause serious damage to the battery. Solar street lamps have controllers. One of the essential functions of this component is overcharge and discharge protection.
Waterproof
Lithium battery itself has very good water resistance. But we should also try to reduce the risk of water inflow. For example, lithium batteries are generally buckled under the solar panel, and there is another protective shell outside.
At present, solar street lamps are developing rapidly. Lithium battery is an energy storage battery with controllability and no pollution. The new lithium battery solar street lamp can perfectly match the system. As the lithium battery technology becomes more and more mature, the capacity is larger and larger, the life is longer and longer, and the application range is wider and wider.