Description
Electronic Spices Power Bank Charger Board Charging Circuit PCB Board Power Supply Step Up Boost Module Mobile Phone for Battery DIY (5V 1A)
Features of Power Bank Circuit:
1.Apply Battery Type:18650 battery(not include)
2.Output Voltage:5V/1A
3.Input Voltage:3.2V-4.2V
4.The battery positive should connect B+
5.The battery negative should connect GND
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