The battery model used for solar street lights is usually 18650. The 18650 battery is a lithium-ion battery with dimensions of 18 mm diameter and 65 mm length. This type of battery has a high energy density, long life, and a low self-discharge rate, making it ideal for use in solar street lights.
A solar street light is a type of lighting device that uses solar energy to generate electricity, which converts solar energy into electricity through solar panels and stores it in batteries. When night comes, the solar street lights will automatically light up to provide illumination. Therefore, the battery plays a vital role in solar street lights, which are able to store enough electrical energy for use at night.
Why choose 18650 battery as the battery model for solar street lights? First of all, the 18650 battery has a higher energy density, which means that it is able to store more electrical energy. This is very important for solar street lights, as it needs to provide continuous illumination at night. Secondly, 18650 batteries have a long lifespan and can withstand multiple charge-discharge cycles, which makes them ideal for use in devices such as solar street lights that require long operating periods. In addition, the 18650 battery has a low self-discharge rate, which means that the battery retains its charge for a longer period of time even when not in use for long periods of time.
In addition to the 18650 battery, other types of batteries can be used with solar street lights. For example, lithium-polymer batteries are also a common choice. Lithium polymer batteries have a higher energy density and a lower self-discharge rate, but they cost more than 18650 batteries. Therefore, when choosing a battery model, factors such as cost, performance, and reliability need to be considered.
In general, solar street lights usually use 18650 batteries as their battery models. With its high energy density, long life, and low self-discharge rate, these batteries are ideal for use in devices such as solar street lights that require long operating periods. Of course, depending on your specific needs and budget, solar street lights can also choose other types of batteries.