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4. After purchasing a new battery, pay attention to whether the positive pole and negative pole are the same as those of the Primary battery. It is important to see the connection line. If correct, insert the snap ring with the water meter buckle.

How long is the service life of a smart water meter battery?

General water meter manufacturers promise a battery life of 3-6 years for smart meters, but how did this figure come about?

In daily use, the centralized consumption of electricity in smart water meters mainly includes the following aspects: battery self discharge consumption, valve switch consumption, magnetic card communication consumption, and LCD flash consumption.

At present, the constant current of the water meter module is below 3uA, and the total energy consumption is about 970mA in 6 years (the valve opening and closing flow rate is about 80mA/9s). This is just a theoretical value and there are no problems that cannot be estimated. Assuming the pipeline network is in a pressure state (0.4 MPa), the current of the on-off valve is generally required to be greater than 90 mA. The total capacity of batteries is not practical value, and the best battery capacity is generally 80% of the battery capacity. As the application progresses to the later stage, the internal resistance increases and the power consumption also increases.

The capacity of lithium-ion batteries commonly used by manufacturers is mostly 2000mAh, and the actual available electricity is about 1200-1300mAh. There are significant differences depending on the quality of the water meter and the user's usage, which is common in 3-6 years.

Intelligent water meters have improved our water use situation, not only saving us manpower and water bills, but also providing us with water and convenient payment, which is also beneficial for us to save water. It is the battery required for the water meter, and the battery belongs to the category of power consumption. No matter what type of battery, there will be a situation of no power. This is about us to pay attention to the power consumption of the battery, and to convert it in advance if there is no power. There are many types of water meters, and we are optimistic that our water meter variety can convert batteries according to a fixed method.

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