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With the increasing application of solar street lights in urban roads, road lighting must not only meet use requirements and enhance the city’s aesthetic appeal, but also be safe, reliable, and durable. This provides a good travel and living environment for people, creates social benefits, and reduces maintenance costs. Since solar street lights are installed outdoors, maintenance becomes particularly important. The battery, as a very important component of solar street lights, also requires careful maintenance. So, what are the maintenance methods for solar street light batteries? Here are the tips from Century Sunshine Lighting.
1. Prevent insufficient charging
In addition to preventing overcharging, solar batteries must also avoid insufficient charging. Continuous insufficient charging may indicate issues with the rack system or low voltage. Frequent insufficient charging can reduce the number of charge cycles and shorten the battery’s lifespan.
2. Prevent overcharging
The lifespan of a solar street light battery is not only dependent on external maintenance, but is also closely related to the internal heat accumulation. If solar batteries are overcharged, their internal temperature will gradually rise, leading to thermal runaway. If severe, this could significantly shorten the battery’s lifespan or even render the battery unusable. To prevent battery overcharging, it is essential to strictly adhere to the manufacturer’s specified charging voltage.
3. Prevent deep discharge
The depth of discharge of a battery is closely related to its designed charge and discharge cycle count (service life). For example, if the discharge depth is 10%, the cycle count can be 10,000 times; however, if the discharge depth reaches 70%, the cycle count drops to only 500 times. The greater the depth of discharge, the fewer the number of cycles.
If deep discharge occurs severely, the battery’s lifespan will be significantly shortened, and in serious cases, the battery may become irreversibly inactive and unusable. To prevent deep discharge, it is advisable to install a Battery Management System (BMS) in the battery. This helps regulate the battery’s voltage and balances the voltage and current among batteries, preventing situations where one battery becomes fully charged while another is completely discharged.
4. Control environmental temperature
Extremely high temperature environments can shorten the lifespan of solar batteries by half, making temperature control very important. Batteries have a longer lifespan in normal temperature conditions, whereas they suffer greatly under high temperatures.
The above maintenance methods for solar street light batteries are shared here. It is crucial to pay special attention to the battery maintenance of solar street lights during daily use. Deep discharge is unacceptable, and overcharging is equally detrimental. Attention must be given to preventing both issues and controlling temperature.
