How to choose the battery for solar street lights?

How to choose the battery for solar street lights?

Since its introduction, solar street lights have been favored by governments and engineering companies as technology gradually matures. Because solar street lights are easy to install, simple, clean, environmentally friendly, and pollution-free, and because they use solar energy systems, there is no need to connect to the power grid, which also makes them safe and saves other expenses such as electricity bills. Due to the various conveniences of solar street lights, most government poverty alleviation projects and rural projects undertaken by construction companies will choose solar street lights.

Although solar street lights do not need to be connected to mains power, they also require batteries to store electrical energy. Therefore, batteries are the lifeline of solar street lights, determining their service life and lighting time. So would you choose batteries?

Nowadays, the batteries used for solar street lights are mostly lithium batteries, while lead-acid batteries and colloidal batteries have gradually been introduced to the stage. Because lithium batteries are lightweight and have a long service life (number of cycles), while lead-acid batteries and gel batteries are bulky and require a dedicated buried box for installation, resulting in a large amount of work. The mainstream lithium batteries now include ternary lithium batteries and lithium iron phosphate batteries. The ternary lithium batteries use 18650 cells and usually use three or more strings to achieve the appropriate voltage. Ternary lithium batteries are more suitable for use in colder regions due to their high number of cycles and good low-temperature resistance. And lithium iron phosphate batteries use 32650 cells, with a much larger single wire capacity than 18650. The advantages of lithium iron phosphate batteries are safety and stability, and they can work smoothly in most situations without the risk of spontaneous combustion, explosion, and other dangers. So if you need long-distance transportation or use in harsh environments, you can choose this lithium iron phosphate battery.

After reading the above analysis, do you have a general understanding of how to choose the battery for solar street lights. If you have any further questions about Solar Street Light Battery, please feel free to consult BATTSYS Battery. With 17 years of production experience, we believe we can provide you with a perfect answer.