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Using the Nanfu 4 generation battery to power the millet door lock is reliable in performance, but there may be compatibility problems. Here is some analysis of the problem:
First of all, Nanfu batteries are favored by many consumers for their stable voltage and long service life. The special battery for Nanfu smart door lock has excellent performance in the number of doors, and the number of doors can reach 7500 times under the voltage of 1.2V, and the leakage performance test also shows good performance. This shows that Nanfu batteries have advantages when used as a smart door lock power supply under general conditions.
Secondly, it is reported that millet customer service does not recommend the use of Nanfu battery to power Xiaomi smart lock, because Nanfu battery has a poly ring, which may lead to voltage instability, and long-term use may cause damage to the precision part of the door lock. This reminds us that when choosing a battery, in addition to considering the performance of the battery, we should also pay attention to the compatibility with a specific device.
In addition, most of the well-known brands of alkaline batteries on the market have no significant difference in the work of the smart door lock, and they meet the requirements of the national standard, which will not cause damage to the door lock. Therefore, if there are known compatibility issues between the Nanfu 4 generation battery and your Xiaomi door lock, you may consider using another brand of battery or choosing a dedicated battery as recommended by the door lock manufacturer.
In general, although the Nanfu battery may be a good choice in terms of performance, when it is used for millet door locks, it is recommended to select the appropriate battery with reference to Xiaomi's official recommendations and published compatibility information to ensure the best operating state and service life of the device.