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How to identify whether an IC card smart water meter needs to convert batteries:
1. The electronic flashing light on the water meter did not flash the water meter number locally, and the water meter emitted an alarm sound, indicating that the water meter battery was no longer charged and needed to be replaced.
2. When the water meter is used up, the valve is not closed, causing water to flow out of the meter. This situation is when the battery of the water meter is out of charge.
3. It was found that the water meter's count is not accurate. It may be due to the battery running out of power, or it may be due to the IC card's smart water meter being broken.
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