The stable operation of a solar streetlight system hinges on the health of its energy storage batteries. When streetlights experience a sudden decrease in illumination time, a significant drop in brightness, or fail to light up properly after consecutive cloudy or rainy days, it usually indicates that the batteries have entered their degradation phase and require timely replacement.Do Solar LED Lights Consume Electricity?
Accurate judgment of when to replace batteries is crucial. Besides observing the above phenomena, the most reliable method is to use a multimeter to test the voltage. For a standard 12-volt system, if the battery’s resting voltage after full charging remains below 12.5 volts for an extended period, or if the voltage drops rapidly to below 10.8 volts after load operation, it can be confirmed that the battery is aging and has insufficient energy storage capacity. Furthermore, if the battery casing shows bulging, deformation, or leakage, it must be replaced immediately to prevent safety hazards.Solar Garden Light Automatic Switch Setup
Selecting a compatible new battery is key to a successful replacement. The primary principle is to ensure that the voltage is completely consistent with the original system. The three main types of batteries commonly found on the market are lithium iron phosphate batteries, gel batteries, and traditional lead-acid batteries. Lithium iron phosphate batteries are lightweight, have a long lifespan, and excellent low-temperature performance, making them particularly suitable for cold northern regions, but they are more expensive. Gel batteries offer excellent value for money, boasting strong deep discharge recovery capabilities, good high-temperature adaptability, and simple maintenance. Traditional lead-acid batteries have the lowest initial cost but shorter lifespan and require more maintenance. Regarding capacity selection, it is recommended that the new battery’s capacity be no less than the old one, and if possible, increase it appropriately to extend battery life on cloudy or rainy days.What to do if your solar streetlights are not working?
Safe and standardized operating procedures are essential. Replacement should be performed during a dry daytime. Before operation, completely cover the solar panel with an opaque material to disconnect the charging circuit and allow it to stand for ten minutes to release residual current. When disassembling, always follow the order of “disconnect the negative terminal first, then the positive terminal”; when installing a new battery, the reverse is true: “connect the positive terminal first, then the negative terminal.” All terminals must be tightened, and it is recommended to apply a special antioxidant grease or petroleum jelly to prevent corrosion. After completing the connection, remove any obstructions from the solar panel and observe whether the system controller indicator light shows a normal charging status (usually a solid red light).
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Post-replacement adjustments and long-term maintenance are equally important. After installing a new battery, it should be fully charged for at least 24 hours under continuous sunny conditions to activate its optimal performance. A simple discharge test can then be performed to verify that the lighting duration has returned to the expected level. To extend battery life, the solar panels should be cleaned regularly (quarterly) to ensure charging efficiency; for exposed battery compartments, their sealing and heat dissipation should be checked. Used batteries are hazardous waste and must be disposed of by qualified recycling organizations; do not discard them indiscriminately.
Through accurate assessment, correct selection, standardized operation, and careful maintenance, a successful battery replacement can give solar streetlights a new lease on life, allowing them to continue providing stable and reliable green lighting.