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Lead acid batteries are used widely in regional automatic weather stations, affected by weather factors, prone to such faults as the leakage corrosion of the electrode, unable to charge, and power supply power failure, which directly affects the meteorological data collection and transmission. In view of the characteristics of lead acid battery maintenance in regional automatic weather stations, the maintenance techniques such as the replenishment, plate vulcanizing, and electrode corrosion processing, as well as operation procedures, precautions, suggestions for field emergency charging, etc., are described in detail, which can be used as references for automatic weather station maintenance personnel.