As an environmentally friendly and efficient lighting tool, solar lights have been widely used in daily life.
But have you ever thought about why solar lights need batteries? What role do batteries play in it?
This article will explore this issue in depth and answer common questions about solar light batteries.
How solar lights work?
The working principle of solar lights is very simple: during the day, solar panels convert sunlight into electrical energy.
Part of the electrical energy is delivered to the load (light) through the controller, and the other part of the electrical energy is stored in the battery.
At night or when there is insufficient light, the battery will release the stored electrical energy to continue to power the light.
PVMars has several different types of solar lights. Click on the picture below to choose the solar light you like.
The key role of batteries in solar lights
Solar light systems require batteries, which can be seen in the following aspects:
- Energy storage
Charging during the day and discharging at night: The battery is like an energy bank, storing the electrical energy generated by the solar panels during the day, and releasing the electrical energy at night or on rainy days to ensure that the solar lights can continue to shine.
Stable power supply: The energy storage function of the battery can effectively smooth out the fluctuations of solar power generation and provide stable and reliable power for the load.
- Balance supply and demand
Coping with changes in light: Solar power generation fluctuates with changes in weather and seasons. The battery can absorb excess power when there is sufficient light. It releases power when there is insufficient light, thereby balancing the supply and demand of the system.
Improve system efficiency: By properly configuring the battery capacity, you can maximize the use of solar resources and improve the overall efficiency of the system. Click on the article “How many hours can the battery supply power” to learn how much battery capacity to choose for your street light.
- Emergency backup
Coping with emergencies: When encountering emergencies such as power grid failures and natural disasters. The battery can be used as an emergency power supply to provide a power guarantee for important loads.
Ensure safety: In emergencies, solar lights can provide lighting and improve safety.
Types of solar light batteries
Lead-acid batteries: While the price is low, the life is short and maintenance is required.
Nickel-metal hydride battery: It has a long cycle life, and no memory effect, but a low energy density.
Lithium-ion battery: high energy density, fast charging, but high cost.
Lithium iron phosphate battery: Despite its high safety and long life, this product is relatively expensive.
Different types of batteries have their advantages and disadvantages, and the selection should be considered comprehensively according to actual needs.
How to choose solar lamp battery?
When choosing a solar lamp battery, the following points should be considered:
Lamp power: choose the appropriate battery capacity according to the power of the lamp.
Use environment: If used in extremely cold or hot environments, lithium iron phosphate batteries that are resistant to low or high temperatures should be selected.
Frequency of use: If the daily use time is long, a battery with a long cycle life should be selected.
Budget: The price of different types of batteries varies greatly, so choose the right battery according to your budget.
How long is the life of a solar lamp battery?
The life of a solar lamp battery is generally between 500-2000 times of charge and discharge, and the specific life is related to factors such as battery type, use environment, and charging method.
What should I do if the solar lamp battery is broken?
If the battery of the solar light is broken, you can follow the steps below to deal with it:
Check the battery: Confirm whether the battery is damaged and eliminate other causes of failure.
Replace the battery: If the battery is damaged, buy the same model or compatible battery for replacement.
Contact the manufacturer: If you cannot replace it yourself, you can contact the solar light manufacturer or after-sales service for repair.
In addition, for more information about the repair of solar street lights, please click on the orange font to view related articles.
Summary
Batteries are an indispensable part of solar lights. Choosing the right battery can extend the service life of solar lights and improve the user experience.
We hope this article can help you better understand the relationship between solar lights and batteries.
