6 slot 18650 battery charger power bank box DIY USB DC output 12v 9v 6v 3.8v

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6 slot 18650 battery charger power bank box DIY USB DC output 12v 9v 6v 3.8v

USB Port Output: 5V/2.1A(max). It need unprotected 18650 battery 2000-6000MAH. Battery Not Included. Total Output Power: 75W(max), DC Port: 65W(max).

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