In case the battery terminals are dirty, clean the terminals with a dry cloth before use. Otherwise performance may occur due to the poor connection with the instrument.
如果电极弄脏，使用前应用干布抹净，否则可能会导致接触不良功能失效。
In case the battery terminals are dirt, clean the terminals with a dry cloth before use. Otherwise power failure or charge failure may occur due to the poor connection with the instrument.
如果电池弄脏，使用前应用干布抹净，否则可能会因接触不良而影响性能失效。
In case the battery terminals are dirt, clean the terminals with a dry cloth before use. Otherwise power failure or charge failure may occur due to the poor connection with the instrument.
如果电池弄脏，使用前应用干布抹净，否则可能会因接触不良而影响性能失效。
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