CAPACITY: High-performance 4200mAh lithium battery designed specifically for smart door lock applications
COMPATIBILITY: Features micro-USB charging port for convenient power replenishment and universal connectivity
DESIGN: Compact black housing with protective casing ensures durability and proper heat dissipation
INSTALLATION: Tool-free battery replacement system allows quick and easy power source changes
POWER SUPPLY: Reliable and consistent power delivery for fingerprint recognition and electronic door mechanisms

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