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Supercapacitor is used in the field of gas meters, with environmental protection and high life.
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At present, with the increasingly intelligent function of electric meters, long-term data storage and display functions are indispensable.
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Conventional smart water meters use a built-in lithium battery when controlling the opening or closing of the water valve. After the lithium battery has been used for a certain period of time, it cannot supply energy to the control circuit and has to repl
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