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1. [Long-lasting battery]: The high-capacity 5000mAh battery cell delivers a stable 7.4V output, reducing the need for frequent battery replacement and providing long-lasting power for smart door locks [Precise Pin Configuration]: The ZNS-09F battery features a G-P+C+P+G- / P-P+C+P+P- pin configuration, perfectly matching the wiring of smart door locks for a plug-and-play replacement [Wide Range of Door Lock Compatibility]: Suitable for fingerprint, facial recognition and PIN-code smart door locks, making it the ideal replacement battery for electronic front door locks [Stable Voltage Output]: A continuous 7.4V power supply ensures the smooth operation of smart door locks, reducing the risk of the lock jamming due to sudden power cuts [Safe Battery Cell]: The built-in safe battery cell is suitable for everyday domestic use, providing continuous and reliable power for smart access control systems