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Lithium polymer battery 7.4V 4200mAh rechargeable smart lock battery Fingerprint

Lithium polymer battery 7.4V 4200mAh rechargeable smart lock battery Fingerprint

Lithium polymer battery 7.4V 4200mAh rechargeable smart lock battery Fingerprint

Lithium polymer battery 7.4V 4200mAh rechargeable smart lock battery Fingerprint lock battery Electronic lock battery The model battery can be replaced for: Bluetooth speaker, electronic business card ...

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