How to check solar street lamp battery

1. Observe whether the surface of the solar battery is clean and whether there is any corrosion or leakage. If the shell is dirty, wipe it with a damp cloth dampened with detergent.　　2. Observe whether the solar battery is dented or bulged; 　　3. Tighten the connecting screws between the battery cells at least once every six months to prevent loosening, resulting in poor contact and other failures. When maintaining or replacing the battery, the tools used (such as wrenches, etc.) must be equipped with insulating sleeves to prevent short circuits.　　4. Charge the battery in time after it is discharged. If the battery is under-charged due to continuous cloudy and rainy days, the power supply time of the power station should be stopped or shortened to avoid over-discharge of the battery. The maintenance personnel of the power station should charge the batteries regularly, generally 2-3 times per quarter. For batteries that have been out of service for a long time (more than 3 months), they should be recharged before being put into operation.　　5. Keep the battery room warm in winter and ventilate the battery room in summer. The temperature of the battery room should be controlled between 5℃ and 25℃ as much as possible.　　6. u200bu200bKeep the lighting surface of the solar module array clean. In areas with little rain and heavy sandstorms, it should be cleaned once a month. When cleaning, you should first rinse with clean water, and then wipe dry with a clean soft cloth. Do not rinse with corrosive solvents or wipe with hard objects . The cleaning should be carried out at a time when there is no sunlight or in the morning and evening. Avoid washing the modules with cold water during the day when the photovoltaic modules are heated by the sun. Very cold water will break the glass cover of the photovoltaic modules. 7. Regularly check whether the wiring between the photovoltaic module panels is firm, whether the wiring in the square junction box is firm, and tighten as needed; check whether the photovoltaic module is damaged or abnormal, such as damage, disappearance of grid lines, hot spots, etc.; check Whether the bypass diode in the junction box of the photovoltaic module works normally. When there is a problem with the photovoltaic module, replace it in time, and record the specific installation and distribution position of the module in the photovoltaic array in detail