12V 3S1P Battery 12.6V/11.1V 18650 Li-ion Battery Pack 3500mAh Backup Power Supply, CCTV, Camera, Fascia gun，lithium-ion battery

12V 3S1P Battery 12.6V/11.1V 18650 Li-ion Battery Pack 3500mAh Backup Power Supply, CCTV, Camera, Fascia gun，lithium-ion battery

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